Shop John Guest Fittings Online At Installation Parts Supply
Surprising fact: nearly 30% of professional installers report saving an hour per job after switching to push-fit connectors that cut tool time and leak callbacks.
That kind of efficiency is centralized at Installation Parts Supply. Buyers can view full details and compare original price with current price on staples like John Guest fittings distributors, tees, and check valves. The online catalog focuses on quick easy push-fit fittings engineered for potable water and plumbing installations.
You see typical pricing at a glance — union connectors from about $1.66 and check valves from about $9.05 — so crews can quickly view availability and bulk savings. On each item page, you can see full details original specs, thread styles, and recommended tubing OD, making plastic, brass, and stainless transitions easier to match.
- Quickly compare original price against current price to speed up purchasing decisions.
- Find push-fit options for water and plumbing systems with clear full details.
- Typical stock includes 1/4″ and 3/8″ unions, tees, valves, and release tools.
- Bulk discounts often run from roughly 4% up to about 21%, depending on SKU.
- Installation Parts Supply offers U.S. stock depth and quick processing for common orders.
Browse John Guest Fittings By Type For Fast, Leak-Resistant Connections
Browsing by part type speeds selection and reduces costly mismatches on the jobsite. Parts are grouped so buyers can view union connector, union elbow, union tee, and threaded adapter options in one quick scan.

Union Connectors With Matching Union Elbows And Tees
You’ll see common sizes and materials laid out with clear pricing bands. A 1/4″ union connector typically starts near $1.66, and union elbows or tees usually fall between about $3.85 and $4.70. That way, shoppers can compare price quickly and examine full product specs.
Reducing Unions And Reducing Tees For Mixed Tube Sizes
Reducing unions such as 3/8 x 1/4″ allow installers to adapt lines without needing extra adapters. Reducing tee options are shown with dimensions so branch lines fit common RO and beverage tubing.
Plug-In Elbows, Stem Fittings, And Elbow Connectors
Elbow connector and plug-in elbow parts make changing direction in a run straightforward. Stem reducers and stem fittings help keep runs compact around panel mounts.
Male And Female NPT/BSP Threaded Adapters
Threaded adapter choices cover thread sizes from 1/8″ through 3/8″. Buyers can choose male or female NPT and BSPP styles to match manifolds and accessories.
“Clear listings make it easy to pick the right part and cut down on time-consuming returns.”
| Part Type | Tube Size | Typical Price |
|---|---|---|
| Union Connector | 1/4″ | $1.66–$2.70 |
| Union elbow | 1/4″ / 3/8″ | $4.05 / $4.50 |
| Reducing Union | 3/8 × 1/4″ | $2.29–$3.60 |
| Threaded adapter (BSPP) | 3/8 × 3/8 | $4.33 |
Reasons To Choose John Guest Push-Fit Fittings
When speed and reliability matter, push-to-connect solutions reshape how installers build lines. They pair straightforward assembly with trusted sealing technology so crews use less time per connection.
Fast, Easy, Tool-Free Installs That Lock Securely
With Speedfit and ProLock, quick easy assembly can trim installation time by up to about 40%. Their design grips tubing and pipe with low insertion force and a reliable locking action.
Installers can disconnect without damage, which reduces waste and rework. Because parts can be reused, teams can stock fewer SKUs for typical potable runs.
Twist-And-Lock And Superseal Technologies To Reduce Leaks
Twist-and-lock versions boost retention in areas where vibration or movement is common. Superseal incorporates double O-ring seals, making leaks much less likely.
ProLock is suitable for hot water and cold water in sizes from 3/8″ to 1″ and handles higher pressure well. Do not use Speedfit or ProLock for gas, fuel oil, or compressed air.
| Product Line | Best use | Key feature | Typical size |
|---|---|---|---|
| Speedfit | Fast potable runs | Push-to-connect seal for plastic/copper | 1/4″–3/4″ |
| ProLock | Hot water and higher pressure | Robust lock, high-temp resilience | 3/8″–1″ |
| Twist-and-Lock / Superseal | Vibration-prone lines | Twist retention with double O-ring sealing | Wide range of OD sizes |
Installation Parts Supply calls out these technologies so customers can view specs and compare price in moments.
Browse Valves And Flow Control To Build Your System
Installation Parts Supply keeps core flow-control pieces for potable water and beverage lines on hand so crews can complete jobs without extra runs to suppliers. Shoppers can skim quick specs and compare price before adding items to the cart.
Inline Shut-Off Valves And Tank Valves
To allow maintenance and routine service, inline shut-off valves isolate sections of a system. Popular polypro shut-off valves begin at about $5.11 for 3/8″ and roughly $5.71 for 1/4″.
Inline valve pricing usually falls around $6.00–$7.00 for 1/4″–3/8″ quick-connect sizes. Tank valves simplify tank hookups with quick-connect ports that keep plumbing steps fast and neat.
Check Valves For Non-Return Protection
Use a check valve to keep backflow from entering RO systems, coolers, and dispensers. A 3/8″ check valve with a 0.3 psi crack pressure is listed near $9.05.
- Choose john guest inline shut-off valves to isolate sections; price points usually run about $5–$7.
- Check full details original on each listing to confirm materials, part numbers, and pressure ratings.
- Ordering in bulk helps keep per-connection costs down for repeat projects and spare inventory.
| Part | Typical price | Note |
|---|---|---|
| Polypro shut-off valve (3/8″) | $5.11 | Quick-connect style |
| Tank valve | $7.00 | Easy tank hookup |
| Check valve 3/8″, 0.3 psi | $9.05 | Non-return protection |
Customers can instantly view current price and availability, review details original price comparisons, and choose the valve john guest parts that fit their system.
Popular Sizes In Stock: 1/4, 3/8, And 1/2 Tube
In most projects, three main tube sizes dominate: 1/4″, 3/8″, and 1/2″, each tailored to specific flow demands. Installation Parts Supply keeps all three sizes ready to ship to support fast project turnaround.
Where 1/4 Inch Tubing And Fittings Work Best
For RO outputs, fridge feeds, and beverage lines, 1/4″ tubing is often the best fit. Compact routing and tight panel layouts both benefit from this size.
At 1/4″, union connectors usually cost $1.66–$2.70, while inline valves commonly run about $6–$7.
Where 3/8 Inch Tube Shines In Potable Water Systems
Tube 3/8 works well for longer runs or when a bit more flow and lower pressure drop are needed. A typical 3/8″ union connector lists at about $3.60.
Reducing unions like 3/8 x 1/4 ($2.29–$3.60) make transitions simple and future-proof lines.
Using 1/2 Inch Lines For Higher Flow
1/2″ tubing supports higher flow branches and short mains without excess restriction. A 1/2″ male connector NPTF is typically listed around $3.27.
- Shoppers can see current price next to original price to spot bulk discounts.
- Catalog items include tees, elbows, and valves at all three sizes.
- Full details original show pressure, temperature, and material data for every part number.
| Size | Example part | Typical Price |
|---|---|---|
| 1/4″ | Union connector | $1.66–$2.70 |
| 3/8″ | Union Connector | $3.60 |
| 1/2″ | Male connector NPTF | $3.27 |
Materials And Finishes Matched To Your Application
Picking the right material at each joint helps preserve water quality and minimize service visits. Installation Parts Supply guides buyers in matching body materials to water quality, operating temperature, and local code.
Polypropylene And Acetal Choices For Potable Water
Polypropylene provides solid chemical resistance and reliable performance in cold and moderate temperatures. This plastic is cost-effective, lighter in weight, and still keeps seals dependable.
Acetal is common in quick-connects for its smooth collet action and long wear life. It eases assembly and disassembly for routine service.
Brass And Stainless Steel Components Where Needed
For exposed threaded transitions and high-stress points, brass and stainless deliver extra mechanical strength. These materials also help meet specific code demands and corrosion concerns.
| Material Type | Best use | Note |
|---|---|---|
| Polypropylene | Potable runs | Lightweight and chemically resistant |
| Acetal | Quick-connects | Durable, smooth collet action |
| Brass / Stainless | Threaded transitions and exposed joints | Higher mechanical strength |
For each SKU, customers can view full details, check price and availability, and confirm pipe and tubing compatibility. Bulk discounts frequently fall in the ~4% to 20%+ range, encouraging crews to standardize material kits.
Potable Water And Plumbing Applications
Quick-connect components speed plumbing chores and reduce downtime from sink stub-outs to fridge feeds. For residential and light commercial potable water projects, Installation Parts Supply offers fast U.S. shipping and clear listings so crews can view price and availability before scheduling labor.
Domestic Hot And Cold Water Lines
JG Speedfit and ProLock cover hot cold water branches and fixture stub-outs. They support domestic supply loops, appliance feeds, and short mains in sizes suited to commonplace installations.
Using 1/4″, 3/8″, and 1/2″ sizes helps crews pick the right pipe or tube quickly and avoid on-site guesswork.
RO Systems, Beverage, And Refrigerator Connections
For most RO systems, 1/4″ tubing usually runs from the tank to the faucet. 3/8″ tubing is useful for higher-flow dispensers or longer run lengths.
Using compact snap-in connectors on beverage and fridge hookups keeps cabinet installations tidy and serviceable.
- Durable seals and collet designs help cut leak callbacks and save rework time.
- By viewing price and standardizing kits, teams can reuse the same SKUs across multiple installs.
- Catalog pages list OD ranges to help pipe, tubes, and connectors match correctly the first time.
| Application | Common size | Key Benefit |
|---|---|---|
| Domestic supply branches | 1/2″, 3/8″ | Higher flow with fewer joints |
| RO feeds and refrigerator lines | 1/4″, 3/8″ | Compact runs, easy service |
| Beverage dispensers | 3/8″ | Stable flow on extended runs |
Heating And HVAC Applications For John Guest Fittings
Hydronic loops and light HVAC accessory lines often rely on quick-connect parts to simplify routine service and seasonal changeovers.
Installation Parts Supply details how these connectors fit into central heating and underfloor heating circuits. Pros can view ratings and confirm suitability for hot cold water systems ahead of ordering.
- Apply them in hydronic loops and HVAC water accessory lines for quick disassembly and easier maintenance.
- Twist-to-lock designs withstand thermal cycling and vibration commonly found in mechanical rooms.
- Compact connectors simplify re-routing pipes and tubing when purging or swapping components.
- Do not use these connectors on gas, fuel oil, or compressed air; they are intended only for water-based loops.
- Visibility into price and bulk tiers makes it easier for facilities to keep spares ready for busy seasons.
| Heating/HVAC Application | Common Size | Usage Note |
|---|---|---|
| Underfloor heating loops | 1/2″–1″ | Tool-free access for purging |
| Hydronic loop branches | 3/8″–3/4″ | Quick replacement of components |
| Accessory manifolds | 1/4″–3/8″ | Tees, elbows, and valves available |
Installation Parts Supply can help verify part specs and local code fit before purchase so systems run reliably after installation.
Ensuring Compatibility With Tubing And Pipe Types
A clear compatibility check saves time and prevents mismatch headaches on site. Installation Parts Supply lists compatibility notes so crews can view which parts mate with each pipe type before ordering.
Easy Connections To Copper, CPVC, And PEX
John Guest push-fit fittings connect easily to copper, CPVC, and PEX. This streamlines mixed-material builds and remodels.
These piping materials are all supported by Speedfit products for potable water. These fittings are not intended for gas, fuel oil, or compressed air service.
Tube Supports, Locks, And Clips For Hot Water Lines
For hot water runs, tube supports and locking clips keep tubing aligned. These accessories also help reduce stress caused by thermal expansion and vibration.
Low-cost locking clips start around $0.19 and are shown on product pages so installers can view price and add them to a kit.
- Choosing the correct lock and support boosts retention in high-temperature lines.
- Product notes point out when tube inserts or supports are needed for specific pipe types.
- By bundling clips, supports, and spare connectors, accessory packs reduce extra visits to the supply house.
| Accessory Type | Compatible pipe | Typical price | Use Case |
|---|---|---|---|
| Locking clip | Copper, PEX, CPVC | $0.19 | Prevent accidental disconnection |
| Tube support insert | PEX / CPVC | $0.45 | Maintain inner diameter under heat |
| Pipe adaptor | Copper to PEX | $1.75 | Transition between mixed materials |
| Support clamp | All compatible pipes listed | $0.95 | Secure runs and limit movement |
Installation Parts Supply helps customers review compatibility and confirm parts so connections stay reliable on the first install.
Highlighted Connectors And Adapters Ready For Your Cart
By curating adapters and connectors, the catalog helps teams choose parts quickly instead of hunting through long lists. Best-selling items are listed by Installation Parts Supply so they’re ready to ship and simple to fit into typical jobs.
Male Connector NPTF And Conversion Adapters
Male connector NPTF parts in stock include 3/8 × 3/8 (PI011223S-X) from $2.26 and 1/2 × 1/2 (PI011624S-US) from $3.27. These help bridge threaded transitions quickly.
Conversion pieces such as a 15mm × 1/2 CTS union conversion connector list near $3.51. Use them when mixing metric and CTS systems.
Faucet, Refrigerator, And Bulkhead Union Connectors
For panel pass-throughs, bulkhead unions keep lines neat, with 1/4″ at $4.60 and 3/8″ at $5.90. Faucet and refrigerator connectors featuring 7/16″ UNS female threads typically cost around $3.65 for 1/4″ and $3.95 for 3/8″.
Customers can view original price and current price, check availability, and view full details for each part number before adding to cart.
| Part | Example Item | Typical Price | Note |
|---|---|---|---|
| Male connector | 3/8 × 3/8 NPTF | $2.26 | For threaded transitions |
| Union connector | 15mm × 1/2 CTS | $3.51 | Metric-to-CTS conversion fitting |
| Bulkhead union | 3/8″ | $5.90 | Clean panel pass-through |
| Faucet / refrigerator connector | 1/4″ QC × 7/16″ UNS female | $3.65 | Appliance hookup connector |
- Add a male connector for NPTF transitions quickly to finish connections faster.
- Pair union connectors for straight joins, and reserve bulkhead unions for panel pass-throughs.
- View full details to verify tube and pipe OD, thread form, and valve compatibility.
Build Reliable Water And Beverage Systems
With purpose-built quick-connect parts, design teams can assemble clean, serviceable beverage lines rapidly.
Installation Parts Supply helps users pick parts by part number or by searching descriptions. Customers can view options matching existing tubing and confirm sanitary specs before ordering.
john guest components are widely trusted in beverage and pure water applications for easy installation and low leak risk. When a specific model is out of stock, compatible brands like Mur-Lok may be suggested to keep a project on schedule.
- Trusted parts for beverage and filtration work that make maintenance quicker.
- Use part numbers for precise ordering or search descriptions to explore compatible options.
- Quick easy assembly reduces system downtime during filter changes and upgrades.
- Straightforward price listings help planners build repeatable bills of materials.
- Consistent OD sizes make scaling from single units to larger manifolds simple.
Branching, reducing, and cornering fittings keep system layouts neat and easy to service. Installation Parts Supply showcases core union tee, reducing union, and elbow connector options for common potable work.
Guest Union Tee Plus Union Connector For Branch Lines
A guest union tee splits a run cleanly without special tools. A 1/4″ union tee is listed near $3.85, while a 3/8″ version runs about $4.70. They help keep service access easy and sustain balanced flow in the line.
A union connector joins two tubes inline, making reroutes or extensions quick. Typical 1/4″ union connector price ranges from $1.66–$2.70, making it an affordable choice for repeat builds.
3/8 x 1/4 John Guest Reducing Union For Transitions
With a john guest reducing union 3/8 x 1/4, smaller device inlets can be adapted to larger supply lines. Prices usually fall near $2.29–$3.60, allowing teams to compare price easily when quoting jobs.
Elbow connector choices keep tubing runs tidy around corners while reducing kinks and preserving pressure. You’ll see union elbows around $4.05 in 1/4″ and $4.50 in 3/8″.
| Part | Size/OD | Typical Price |
|---|---|---|
| Guest union tee | 1/4″ | $3.85 |
| Guest Union Tee | 3/8″ | $4.70 |
| Union Connector | 1/4″ | $1.66–$2.70 |
| Reducing Union | 3/8 × 1/4″ | $2.29–$3.60 |
| Union Elbow | 1/4″ / 3/8″ | $4.05 / $4.50 |
- Use a guest union tee to branch lines cleanly while retaining serviceability.
- Compare price across sizes to match flow, budget, and tube john standards.
- View full and full details on dimensions and materials to confirm compatibility for tubing and potable water applications.
- Repeatable part numbers make stocking and technician training simpler.
Current Price Highlights With Bulk Savings
Clear price highlights help buyers spot value parts fast and lock in savings for repeat projects.
Value Picks: Reducing Union And Union Connector
Shoppers can easily find standout value in these common parts. A Polypro union connector in 1/4″ usually starts around $1.66, and a 3/8″ union connector sits near $3.60.
The 3/8 × 1/4″ reducing union often falls to about price 2.29 in promotional periods. These parts are excellent choices for kit builds and bulk purchases.
Check Valve, Valves, And Tools: Bulk Discounts Apply
You’ll generally find inline valves priced $6–$7 and a 3/8″ check valve (0.3 psi) near $9.05.
Locking clips starting at $0.19 and a release tools set near $13.07 qualify for tiered discounts as order quantities grow.
- Scan the current price cards to quickly compare original price with current price.
- Bulk pricing often trims the original price by roughly 4–21%, depending on the SKU.
- For male connector pieces and female adapters, larger orders generally bring better unit pricing.
- tube 3/8 and tube john guest bundles simplify kit pricing for fleets.
| Item Type | Typical Price | Bulk note |
|---|---|---|
| 1/4″ Union Connector | $1.66 | Bulk price breaks at 25+ units |
| 3/8 × 1/4″ Reducing Union | $2.29–$3.60 | Promo price often near price 2.29 |
| 3/8″ Check Valve | $9.05 | Volume discounts offered |
Installation Parts Supply structures pricing tiers so procurement teams can view full details and forecast budgets with confidence.
Checking Full Details: Specs, Part Numbers, And Availability
With product pages providing specs, stock status, and exact part numbers, teams can order confidently without guessing.
Customers can view full details for each john guest item, including approvals, dimensions, and downloadable datasheets. This information helps crews document bids and confirm compatibility before they buy.
Original Price vs. Current Price And In-Stock Status
Each SKU displays original price and current price next to each other. Bulk tier notes highlight potential savings and assist planners in picking the best unit cost.
Availability labels such as “In stock” or ETA reduce scheduling risk and speed approvals.
Filter And Compare Items By Size, Body Material, And Application
- Side-by-side comparisons allow union connector, male connector, and female adapter options to be checked by thread type and tube OD.
- Filters cover size, body material, color/finish, and application tags such as Potable Water, Plumbing, and Central Heating.
- Teams can export part numbers into procurement systems to reduce order errors.
| Feature | Shown on page | Advantage |
|---|---|---|
| Full Details | Specs, approvals, datasheets | Accurate bids and installs |
| Price Display | Original price & current price | Fast cost comparisons |
| Availability | In stock / ETA | Improved scheduling confidence |
Installation Tips For Secure Push-Fit Connections
Small prep steps make push-fit connections perform like pro-grade joints. Installation Parts Supply suggests several consistent actions that reduce leaks and callbacks. Follow simple habits to keep assembly quick easy and dependable on each run.
Cutting Square, Seating Fully, And Using Locking Clips
Always cut the tube square and deburr the end to help the O-ring seat evenly. A poor cut may nick the seal and result in leaks.
Mark the proper insertion depth and push in until the tube seats fully. Check by pulling back gently, then add a lock clip at critical joints for extra retention.
When To Choose Twist-And-Lock Or Superseal
In areas with vibration or movement, choose twist-and-lock connections. It adds retention without slowing quick easy assembly.
Choose Superseal where double O-ring protection is needed around equipment or critical service points. On soft tube and hot water lines, add supports to maintain steady sealing pressure.
“Cut square, seat fully, and add clips—those steps save time and prevent service calls.”
- Reduce stress on pipe and fittings by avoiding side-loads and supporting long spans.
- Keep parts clean because debris can compromise seals and raise the risk of leaks.
- Reference full details and view the rated temperature and pressure before using any fitting.
- Keep spare clips and release tools on hand to make field adjustments faster.
Why Purchase John Guest Fittings Through Installation Parts Supply
Buyers receive a focused catalog that’s designed for speed. The store groups unions, tees, elbows, valves, clips, and tools, helping teams find what they need quickly.
Broad Selection, Quick U.S. Shipping, And Helpful Support
Installation Parts Supply maintains deep stock levels for both common and specialty pieces. You’ll see many SKUs labeled with “Save up to X% with bulk pricing.”
Fast U.S. shipping and prompt order handling reduce the chance of job delays. The support team helps match parts to plumbing and water applications and can suggest Mur-Lok alternatives if an exact item is out of stock.
Simple Reorders By Part Number With Quick-View Shopping
Using part numbers for reorders reduces mistakes and accelerates procurement. Quick-view pages allow buyers to view specs, availability, and full details without leaving the main catalog.
Using filters, buyers can quickly find a male connector, female adapter, or other key parts and compare price before they check out.
| Benefit | Why it matters | Illustration |
|---|---|---|
| Deep assortment | Less downtime and fewer substitutions | Range of unions, tees, valves, release tools |
| Bulk pricing | Lower unit cost for repeat orders | Save up to X% on commonly used SKUs |
| Quick-View Pages | Fast decisions with specs and stock | View specs and current price on one screen |
| Expert support | Helps align parts with job needs and budgets | Alternative parts suggested where appropriate |
Wrapping Up
Complete projects faster by selecting parts that meet specs, stock levels, and price in one view. Installation Parts Supply lists john guest and john guest fittings across unions, tees, reducing unions, valves, adapters, and bulkhead unions to simplify kit building.
Shoppers can see current price beside original price and view full details to confirm sizing and materials before checkout. The catalog highlights push-fit fittings plus accessories, making it simple to plan and order a complete system outfit.
Browse, compare, and order confidently today. With clear part numbers, bulk tiers, availability labels, and friendly support, teams can standardize kits, reduce errors, and keep projects on schedule.








