Small Diameter Tubing Quick Connect Fittings

John Guest Push-Fit Fittings

John Guest fittings are a quick and inexpensive way to make a connection for your refrigerator, reverse osmosis filters, or for your faucets. They are also so strong and durable that they are used in commercial applications like soda fountains and commercial icemakers. They are 2014 Federal Safe Drinking Water Act complaint, as well as being very easy to install and put in use. Making repairs fast and easy. Looking for more push-fit connectors? Click here.

Shop John Guest Push-Fit Fittings by Size

Shop John Guest Push-Fit Fittings by Type

click any of the images below to be directed to that section
Male AdapterMale Adapters
Female AdapterFemale Adapters
Stem AdapterStem Adapters
ReducerReducers
PlugPlugs
Union TeeUnion Tees
Swivel Branch TeeSwivel Branch Tees
Swivel Male Run TeeSwivel Male Run Tees
Reducing TeeReducing Tees
Tube to Hose StemTube To Hose Stems
Union ConnectorUnion Connectors
Reducing Union ConnectorReducing Union Connectors
Union ElbowUnion Elbows
Swivel ElbowSwivel Elbows
Reducing ElbowReducing Elbows
Fixed ElbowFixed Elbows
Plug-In ElbowPlug-In Elbows
Angle Shut-Off ValveAngle Shut-Off Valves
1/4 Turn Shut-Off ValveQuarter Turn Shut-Off Valves
Male 1/4 Turn Shut-Off ValveMale Quarter Turn Shut-Off Valves
Angle Stop Adapter ValveAngle Stop Adapter Valves
Angle Stop Adapter ValveAngle Stop Adapter Valves (with conversion adapter)
Acetal Long Handle Shut-Off ValveAcetal Long Handle Shut-Off Valves
Acetal Short Handle Shut-Off ValveAcetal Short Handle Shut-Off Valves
Filter Faucet ConnectorFilter Faucet Connectors
Female Compression AdapterFemale Compression Adapters
Female Garden Hose Thread Swivel ElbowFemale Garden Hose Thread Swivel Elbows
Locking ClipsLocking Clips

All of these John Guest quick connect fittings are 2014 Federal Safe Drinking Water Act compliant.

sample push-in quick connect fitting
These Push-In Tube Fittings Feature:
  • No expensive speciality tools required to make a good connection
  • Durable polypropylene constructed fittings
  • Food grade EPDM o-rings provide a durable leak proof seal
  • Polypropylene collets with stainless steel teeth provide grip on the tube
  • Simple disconnect - simply push the collet to release and remove the tube
  • Fittings for tubing ranging from 1/4" O.D. to 1/2" O.D.
  • Maximum pressure is 150 psi at 70°F and 60 psi at 140°F
  • Great for water filters, refrigerator filters, RO filters, ice makers, and more
  • Order as few as you like! No minimums!
  • Quantity discounts available - BUY MORE, SAVE MORE
  • Click here to learn more about these fittings

Male Adapters

Male Adapter
Shown: 1/2" O.D. x 1/2" NPT Male Adapter
O.D. NPT Price & Quantity
1/4" 1/8" $1.75
1/4" 1/4" $1.87
1/4" 3/8" $2.61
1/4" 1/2" $4.14
3/8" 1/4" $2.98
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O.D. NPT Price & Quantity
3/8" 3/8" $3.28
3/8" 1/2" $4.92
1/2" 3/8" $4.35
1/2" 1/2" $4.69
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Female Adapters

Female Adapter
Shown: 3/8" O.D. x 3/8" NPT Female Adapter
O.D. NPT Price & Quantity
1/4" 1/8" $5.62
1/4" 1/4" $5.72
O.D. NPTF Price & Quantity
3/8" 1/4" $5.95
3/8" 3/8" $7.61
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Stem Adapters

Stem Adapter
Shown: 1/2" Stem O.D. x 1/2" NPT Stem Adapter
Stem O.D. NPT Price & Quantity
1/4" 1/8" $0.91
1/4" 1/4" $0.90
3/8" 1/4" $1.10
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Stem O.D. NPT Price & Quantity
3/8" 3/8" $1.41
1/2" 3/8" $2.20
1/2" 1/2" $2.31
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Reducers

Reducer
Shown: 3/8" Stem O.D. x 1/4" O.D. Reducer
Stem O.D. O.D. Price & Quantity
3/8" 1/4" $2.86
Stem O.D. O.D. Price & Quantity
1/2" 3/8" $5.32
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Plugs

Plug
Shown: 3/8" Stem O.D. Plug
Stem O.D. Price & Quantity
1/4" $0.71
5/16" $0.85
Stem O.D. Price & Quantity
3/8" $1.17
1/2" $1.84
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Union Tees

Union Tee
Shown: 1/2" O.D. Union Tee
O.D. Price & Quantity
1/4" $3.52
5/16" $3.82
O.D. Price & Quantity
3/8" $4.37
1/2" $5.50
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Swivel Branch Tees

Swivel Branch Tee
Shown: 3/8" O.D. x 3/8" O.D. x 3/8" NPT Swivel Branch Tee
O.D. NPT Price & Quantity
1/4" 1/8" $4.58
1/4" 1/4" $4.80
O.D. NPT Price & Quantity
3/8" 1/4" $5.59
3/8" 3/8" $6.09
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Swivel Male Run Tees

Swivel Male Run Tee
Shown: 3/8" O.D. x 3/8" NPT Swivel Male Run Tee
O.D. NPT Price & Quantity
1/4" 1/8" $4.61
1/4" 1/4" $4.84
O.D. NPT Price & Quantity
3/8" 1/4" $5.51
3/8" 3/8" $6.10
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Reducing Tees

Reducing Tee
O.D.
( A )		 O.D.
( B )		 O.D.
( C )		 Price & Quantity
3/8" 1/4" 3/8" $4.67
3/8" 3/8" 1/4" $4.64
O.D.
( A )		 O.D.
( B )		 O.D.
( C )		 Price & Quantity
1/2" 1/2" 3/8" $6.13
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Tube To Hose Stems

Tube Stem
Shown: 1/2" Stem O.D. x 1/2" Hose I.D. Tube To Hose Stem
Stem O.D. Hose I.D. Price & Quantity
3/8" 3/8" $2.59
3/8" 1/2" $3.33
Stem O.D. Hose I.D. Price & Quantity
1/2" 3/8" $2.80
1/2" 1/2" $3.33
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Union Connectors

Union Connector
Shown: 1/2" O.D. Union Connector
O.D. Price & Quantity
1/4" $2.55
1/4" with Filter Screen $4.82
5/16" $2.78
O.D. Price & Quantity
3/8" $3.48
1/2" $4.01
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Reducing Union Connectors

Reducing union connector
Shown: 3/8" O.D. x 1/4" O.D. Reducing Union Connector
O.D. O.D. Price & Quantity
3/8" 1/4" $3.48
O.D. O.D. Price & Quantity
1/2" 3/8" $4.64
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Union Elbows

Union Elbow
Shown: 1/2" O.D. Union Elbow
O.D. Price & Quantity
1/4" $2.94
5/16" $2.96
O.D. Price & Quantity
3/8" $4.27
1/2" $4.93
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Swivel Elbows

Swivel Elbow
Shown: 3/8" O.D. x 3/8" NPT Swivel Elbow
O.D. NPT Price & Quantity
1/4" 1/8" $3.89
1/4" 1/4" $3.86
O.D. NPT Price & Quantity
3/8" 1/4" $5.57
3/8" 3/8" $6.10
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Reducing Elbows

Reducing Elbow
Shown: 3/8" O.D. x 1/4" O.D. Reducing Elbow
O.D. O.D. Price & Quantity
5/16" 1/4" $3.59
3/8" 1/4" $4.56
O.D. O.D. Price & Quantity
1/2" 3/8" $5.69
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Fixed Elbows

Fixed Elbow
Shown: 3/8" O.D. x 3/8" NPT Fixed Elbow
O.D. NPT Price & Quantity
1/4" 1/8" $2.61
1/4" 1/4" $2.96
1/4" 3/8" $3.51
O.D. NPT Price & Quantity
3/8" 1/4" $3.72
3/8" 3/8" $4.03
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Plug-In Elbows

Plug-In Elbow
Shown: 1/2" Stem O.D x 1/2" O.D. Plug-In Elbow
Stem O.D. O.D. Price & Quantity
1/4" 1/4" $2.64
5/16" 5/16" $3.43
3/8" 1/4" $3.62
Stem O.D. O.D. Price & Quantity
3/8" 3/8" $4.39
1/2" 1/2" $5.31
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Angle Shut-Off Valve - Polypropylene
speedfit x female

Angle Shut-Off Valve
Shown: 1/4" O.D. x 1/4" NPT Polypropylene Angle Shut-Off Valve
Polypropylene is more chemically resistant than acetal. FDA compliant materials for food quality applications. For use with polyethylene, nylon, and polyurethane tubing for potable water.
  • Maximum pressure: 150 psi at 70° F. - 60 psi at 140° F.
  • Minimum temperature: 33° F.
Tube O.D. Thread NPT Price & Quantity
1/4" 1/4" $8.53
Tube O.D. Thread NPT Price & Quantity
3/8" 1/4" $8.87
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1/4 Turn Shut-Off Valve - Polypropylene
speedfit x speedfit

1/4 Turn Shut-Off Valve
Shown: 1/4" O.D. Polypropylene 1/4 Turn Shut-Off Valve
Polypropylene is more chemically resistant than acetal. FDA compliant materials for food quality applications. For use with polyethylene, nylon, and polyurethane tubing for potable water.
  • Maximum pressure: 150 psi at 70° F. - 60 psi at 140° F.
  • Minimum temperature: 33° F.
Tube O.D. Price & Quantity
1/4" $7.71
Tube O.D. Price & Quantity
3/8" $8.20
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1/4 Turn Shut-Off Valve - Polypropylene
speedfit x male

1/4 Turn Male Shut-Off Valve
Shown: 1/4" O.D. x 1/4" NPT Polypropylene 1/4 Turn Shut-Off Valve
Polypropylene is more chemically resistant than acetal. FDA compliant materials for food quality applications. For use with polyethylene, nylon, and polyurethane tubing for potable water.
  • Maximum pressure: 150 psi at 70° F. - 60 psi at 140° F.
  • Minimum temperature: 33° F.
Tube O.D. Thread NPT Price & Quantity
1/4" 1/4" $7.68
Tube O.D. Thread NPT Price & Quantity
3/8" 3/8" $8.16
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Angle Stop Adapter Valves

Angle Stop Adapter
Shown: 3/8" Male Thread Comp. x 3/8" Female Thread Comp. x 3/8" O.D. Angle Stop Adapter Valve
These innovative Angle Stop Adapter Valves attach quickly and easily to your angle stop and give you an extra outlet with a convenient 1/4 turn shut-off valve, without interrupting the water supply to your existing faucet. You can hook up a filter, an icemaker, a beverage dispenser, or other potable water device without the need to install a new separate cold water line. Use in full open or fully closed positions. Should not be used as a flow control throttling valve.
  • Maximum 150 psi at 70° F.
  • For cold water use only
Male
Thread
Compression		 Female
Thread
Compression		 Tube
O.D.		 Price & Quantity
3/8" 3/8" 1/4" $17.56
Male
Thread
Compression		 Female
Thread
Compression		 Tube
O.D.		 Price & Quantity
3/8" 3/8" 3/8" $18.33
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Angle Stop Adapter Valves WITH Conversion Adapter

Angle Stop Adapter with Conversion
Shown: 1/2" S.J. Female Thread x 3/8" Male Thread Comp. x 1/4" O.D. Angle Stop Adapter Valve with Conversion Adapter
Similar to the Angle Stop Adapters above but these unique Angle Stop Adapter Valves include a conversion adapter to be used on either side of the valve so the valve will attach to 1/2" slip joint threads on both ends, female on one side, male on the other, or 3/8" compression threads, female on one side, male on the other. Conversion adapter is 1/2" male NPS threads on one side and 3/8" compression female threads (9/16" - 24 UNEF) on the other. For cold water use only.
Female Thread Male
Thread
Compression		 Tube
O.D.		 Price & Quantity
1/2" S.J. 3/8" 1/4" $28.31
Female Thread Male
Thread
Compression		 Tube
O.D.		 Price & Quantity
1/2" S.J. 3/8" 3/8" $28.39
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Acetal - Long Handle - 1/4 Turn Shut-Off Valve
speedfit x speedfit

Acetal Long Handle Shut-Off Valve
Shown: 3/8" O.D. Acetal Long Handle 1/4 Turn Shut-Off Valve
FDA compliant materials for food quality applications. For use with polyethylene, nylon, and polyurethane tubing for potable water. These Acetal valves are suitable for air or inert gases.
  • Maximum pressure: 145 psi at 68° F. - 100 psi at 149° F.
  • Minimum temperature: 33° F.
Tube O.D. Price & Quantity
3/8" $11.13
Tube O.D. Price & Quantity
1/2" $11.26
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Acetal - Short Handle - 1/4 Turn Shut-Off Valve
speedfit x speedfit

Acetal Short Handle Shut-Off Valve
FDA compliant materials for food quality applications. For use with polyethylene, nylon, and polyurethane tubing for potable water.
  • Maximum pressure: 145 psi at 68° F. - 100 psi at 149° F.
  • Minimum temperature: 33° F.

3/8" Tube O.D. Short Handle Acetal Shut-Off Valve = $15.20

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Filter Faucet Connector

Filter Faucet Connector
Shown: 3/8" O.D. x 1/4" Compression Female Filter Faucet Connector
This item is designed to provide a push-fit connection for easily installing 1/4" or 3/8" tubing.
Click here to see an example.
O.D. 1/4" Compression Female
(UNS threads)		 Price & Quantity
1/4" 1/4" compression female
(7/16" - 24 threads)		 $3.75
O.D. 1/4" Compression Female
(UNS threads)		 Price & Quantity
3/8" 1/4" compression female
(7/16" - 24 threads)		 $3.93
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3/8" O.D. x 3/8" Female Compression Thread Adapter

Female Compression Adapter
Special female compression threads (9/16" - 24 UNEF) turn any 3/8" brass compression fitting or angle stop 3/8" compression outlet into a push-fit quick release fitting.

3/8" OD x 3/8" Female Compression Thread Adapter = $8.54

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3/8" OD x Female Garden Hose Thread Swivel Elbow

Female Swivel Elbow

3/8" OD x Female Swivel Elbow (GHT) = $14.11

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Locking Clips

Locking Clips
Shown: Locking Clip for 1/2" O.D.
For O.D. Price & Quantity
1/4" $0.26
5/16" $0.32
For O.D. Price & Quantity
3/8" $0.29
1/2" $0.29
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Shop John Guest Push-Fit Fittings by Size

1/4" John Guest Push-Fit Fittings

Description Price & Quantity
1/4" O.D. x 1/8" NPT Male Adapter $1.75
1/4" O.D. x 1/4" NPT Male Adapter $1.87
1/4" O.D. x 3/8" NPT Male Adapter $2.61
1/4" O.D. x 1/2" NPT Male Adapter $4.14
1/4" O.D. x 1/8" NPTF Female Adapter $5.62
1/4" O.D. x 1/4" NPTF Female Adapter $5.72
1/4" Stem O.D. x 1/8" NPT Stem Adapter $0.91
1/4" Stem O.D. x 1/4" NPT Stem Adapter $0.90
1/4" Stem O.D. Plug $0.71
1/4" x 1/4" x 1/4" Union Tee $3.52
1/4" O.D. x 1/8" NPT Swivel Branch Tee $4.58
1/4" O.D. x 1/4" NPT Swivel Branch Tee $4.80
1/4" O.D. x 1/8" NPT Swivel Male Run Tee $4.61
1/4" O.D. x 1/4" NPT Swivel Male Run Tee $4.84
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Description Price & Quantity
1/4" O.D. x 1/4" O.D. Union Connector $2.55
1/4" O.D. x 1/4" O.D. Union Elbow $2.94
1/4" O.D. x 1/8" NPT Swivel Elbows $3.89
1/4" O.D. x 1/4" NPT Swivel Elbow $3.86
1/4" O.D. x 1/8" NPT Fixed Elbow $2.61
1/4" O.D. x 1/4" NPT Fixed Elbow $2.96
1/4" O.D. x 3/8" NPT Fixed Elbow $3.51
1/4" Stem O.D. x 1/4" O.D. Plug-In Elbow $2.64
1/4" Tube O.D. x 1/4" Thread NPTF
Angle Shut-Off Valve		 $8.53
1/4" Tube O.D. 1/4 Turn Shut-Off Valve $7.71
1/4" Tube O.D. x 1/4" Thread NPT
1/4 Turn Shut-Off Valve		 $7.68
1/4" O.D. x 1/4" Compression Female
Filter Faucet Connector		 $3.75
1/4" Locking Clip $0.26
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5/16" John Guest Push-Fit Fittings

Description Price & Quantity
5/16" Stem O.D. Plug $0.85
5/16" x 5/16" x 5/16" Union Tee $3.82
5/16" O.D. x 5/16" O.D. Union Connector $2.78
5/16" O.D. x 5/16" O.D. Union Elbow $2.96
Description Price & Quantity
5/16" O.D. x 1/4" O.D. Reducing Elbow $3.59
5/16" Stem O.D. x 5/16" O.D. Plug-In Elbow $3.43
5/16" Locking Clip $0.32
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3/8" John Guest Push-Fit Fittings

Description Price & Quantity
3/8" O.D. x 1/4" NPT Male Adapter $2.98
3/8" O.D. x 3/8" NPT Male Adapter $3.28
3/8" O.D. x 1/2" NPT Male Adapter $4.92
3/8" O.D. x 1/4" NPTF Female Adapter $5.95
3/8" O.D. x 3/8" NPTF Female Adapter $7.61
3/8" Stem O.D. x 1/4" NPT Stem Adapter $1.10
3/8" Stem O.D. x 3/8" NPT Stem Adapter $1.41
3/8" Stem O.D. x 1/4" O.D. Reducer $2.86
3/8" Stem O.D. Plug $1.17
3/8" x 3/8" x 3/8" Union Tee $4.37
3/8" O.D. x 1/4" NPT Swivel Branch Tee $5.59
3/8" O.D. x 3/8" NPT Swivel Branch Tee $6.09
3/8" O.D. x 1/4" NPT Swivel Male Run Tee $5.51
3/8" O.D. x 3/8" NPT Swivel Male Run Tee $6.10
3/8" (A) x 1/4" (B) x 3/8" (C) Reducing Tee $4.67
3/8" (A) x 3/8" (B) x 1/4" (C) Reducing Tee $4.64
3/8" Stem O.D. x 3/8" Hose I.D. Tube to Hose Stem $2.59
3/8" Stem O.D. x 1/2" Hose I.D. Tube to Hose Stem $3.33
3/8" O.D. x 3/8" O.D. Union Connector $3.48
3/8" O.D. x 1/4" O.D. Reducing Union Connector $3.48
3/8" O.D. x 3/8" O.D. Union Elbow $4.27
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Description Price & Quantity
3/8" O.D. x 1/4" NPT Swivel Elbow $5.57
3/8" O.D. x 3/8" NPT Swivel Elbow $6.10
3/8" O.D. x 1/4" O.D. Reducing Elbow $4.56
3/8" O.D. x 1/4" NPT Fixed Elbow $3.72
3/8" O.D. x 3/8" NPT Fixed Elbow $4.03
3/8" Stem O.D. x 1/4" O.D. Plug-In Elbow $3.62
3/8" Stem O.D. x 3/8" O.D. Plug-In Elbow $4.39
3/8" Tube O.D. x 1/4" Thread NPTF Angle Shut-Off Valve $8.87
3/8" Tube O.D. 1/4 Turn Shut-Off Valve $8.20
3/8" Tube O.D. x 3/8" Thread NPT 1/4 Turn Shut-Off Valve $8.16
3/8" MTC x 3/8" FTC x 1/4" Tube O.D. Angle Stop Adapter Valve $17.56
3/8" MTC x 3/8" FTC x 3/8" Tube O.D. Angle Stop Adapter Valve $18.33
3/8" Tube O.D. Acetal Long Handle Shut-Off Valve $11.13
3/8" Tube O.D. Acetal Short Handle Shut-Off Valve $15.20
3/8" O.D. x 1/4" Compression Female Filter Faucet Connector $3.93
3/8" O.D. x 3/8" Female Compression Thread Adapter $8.54
3/8" O.D. Female Swivel Elbow (GHT) $14.11
3/8" Locking Clip $0.29
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1/2" John Guest Push-Fit Fittings

Description Price & Quantity
1/2" O.D. x 3/8" NPT Male Adapter $4.35
1/2" O.D. x 1/2" NPT Male Adapter $4.69
1/2" Stem O.D. x 3/8" NPT Stem Adapter $2.20
1/2" Stem O.D. x 1/2" NPT Stem Adapter $2.31
1/2" Stem O.D. x 3/8" O.D. Reducer $5.32
1/2" Stem O.D. Plug $1.84
1/2" x 1/2" x 1/2" Union Tee $5.50
1/2" (A) x 1/2" (B) x 3/8" (C) Reducing Tee $6.13
1/2" Stem O.D. x 3/8" Hose I.D. Tube to Hose Stem $2.80
1/2" Stem O.D. x 1/2" Hose I.D. Tube to Hose Stem $3.33
1/2" O.D. x 1/2" O.D. Union Connector $4.01
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Description Price & Quantity
1/2" O.D. x 3/8" O.D. Reducing Union Connector $4.64
1/2" O.D. x 1/2" O.D. Union Elbow $4.93
1/2" O.D. x 3/8" O.D. Reducing Elbow $5.69
1/2" Stem O.D. x 1/2" O.D. Plug-In Elbow $5.31
1/2" S.J. Female Thread x 3/8" Male Thread Compression x 1/4" Tube O.D.
Angle Stop Adapter Valve w/Conversion Adapter		 $28.31
1/2" S.J. Female Thread x 3/8" Male Thread Compression x 3/8" Tube O.D.
Angle Stop Adapter Valve w/Conversion Adapter		 $28.39
1/2" Tube O.D. Acetal Long Handle Shut-Off Valve $11.26
1/2" Locking Clip $0.29
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How To Use These Great Push To Connect Fittings

To make a connection, the tube is simply pushed in by hand; the unique collet locking system then holds the tube firmly in place without deforming the tube or restricting flow.

Start by pushing the tube into the fitting and up to the tube stop.

After the tube has been inserted, pull on the tube to check that it is secure.

It's a good idea to use a simple tube cutter for a square cut and to remove burrs and any sharp edges.

To disconnect, ensure that the system is depressurized, push the collet square against the fitting. With the collet held in this position the tube can be removed.

Frequently Asked Questions

Q. "Do you offer John Guest quick connect fittings in larger sizes?"
A. We do, please click here for larger push fit quick connect fittings.

Q. "I have heard of National Pipe Threads (NPT) but what does 'UNS thread' mean?"
A. UNS stands for "Unified National Special" threads. The 7/16" x 24 threads on the filter faucet connections are a special 1/4" od compression female thread, (same female thread as a brass compression nut). These special fittings are used to attach directly to the male inlet threading on filter faucets that have 1/4" compression inlets.

Q. "What are the locking clips used for?"
A. The locking clips are used for extra protection when a Quick Connect Push-In fitting is used excessively and the tubing is removed and reinserted a lot. The locking clips are to be inserted directly behind the collet.

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