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John Guest Fittings

All John Guest fittings (excluding flow restrictors and female adaptor) are NSF certified and every John Guest fitting is made with FDA complaint materials for food quality applications.

All John Guest Fittings feature Quick-Connect ports. View all the John Guest Products we offer.



Union Elbows - Equal Elbow Connectors

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John Guest® 1/4" Union Elbow (White Polypropylene)
NSF® Certified John Guest® 1/4" Union Elbow (White Polypropylene)
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John Guest® 3/8" Union Elbow (White Polypropylene)
NSF® Certified John Guest® 3/8" Union Elbow (White Polypropylene)
QTY:
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John Guest® 1/4" Union Elbow (Acetal)
NSF® Certified John Guest® 1/4" Union Elbow (Acetal)
QTY:
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John Guest® 3/8" Union Elbow (Acetal)
NSF® Certified John Guest® 3/8" Union Elbow (Acetal)
QTY:
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John Guest® 1/2" Union Elbow (Acetal)
NSF® Certified John Guest® 1/2" Union Elbow (Acetal)
QTY:
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John Guest® 3/4" CTS Union Elbow (White Polypropylene)
NSF® Certified John Guest® 3/4" CTS Union Elbow (White Polypropylene)
$6.45
QTY:
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John Guest® 1" CTS Union Elbow (White Polypropylene)
NSF® Certified John Guest® 1" CTS Union Elbow (White Polypropylene)
$10.85
QTY:
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Union Connectors - Equal Straight Connectors

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John Guest® 1/4" (OD) Straight Union Connector (White Polypropylene)
NSF® Certified John Guest® 1/4" (OD) Straight Union Connector (White Polypropylene)
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John Guest® 3/8" (OD) Straight Union Connector (White Polypropylene)
NSF® Certified John Guest® 3/8" (OD) Straight Union Connector (White Polypropylene)
QTY:
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John Guest® 1/4" (OD) Straight Union Connector (Acetal)
NSF® Certified John Guest® 1/4" (OD) Straight Union Connector (Acetal)
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John Guest® 3/8" (OD) Straight Union Connector (Acetal)
NSF® Certified John Guest® 3/8" (OD) Straight Union Connector (Acetal)
QTY:
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John Guest® 1/2" (OD) Straight Union Connector (Acetal)
NSF® Certified John Guest® 1/2" (OD) Straight Union Connector (Acetal)
QTY:
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John Guest® 3/4" CTS (OD) Straight Union Connector (White Polypropylene)
NSF® Certified John Guest® 3/4" CTS (OD) Straight Union Connector (White Polypropylene)
$4.90
QTY:
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John Guest® 1" CTS (OD) Straight Union Connector (White Polypropylene)
NSF® Certified John Guest® 1" CTS (OD) Straight Union Connector (White Polypropylene)
$9.60
QTY:
Add to Cart

Reducing Unions - Reducing Straight Connectors

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John Guest® 3/8" x 1/4" Reducing Union
NSF® Certified John Guest® 3/8" x 1/4" Reducing Union
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John Guest® 3/8" x 5/16" Reducing Union
NSF® Certified John Guest® 3/8" x 5/16" Reducing Union
QTY:
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John Guest® 1/2" x 3/8" Reducing Union
NSF® Certified John Guest® 1/2" x 3/8" Reducing Union
QTY:
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John Guest® 3/4" x 1/2" CTS Reducing Union (White Polypropylene)
NSF® Certified John Guest® 3/4" x 1/2" CTS Reducing Union (White Polypropylene)
$4.20
QTY:
Add to Cart
John Guest® 1" x 3/4" CTS Reducing Union (White Polypropylene)
NSF® Certified John Guest® 1" x 3/4" CTS Reducing Union (White Polypropylene)
$5.60
QTY:
Add to Cart

Union Tees - Equal Tees

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John Guest® 1/4" Union Tee (White Polypropylene)
NSF® Certified John Guest® 1/4" Union Tee (White Polypropylene)
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John Guest® 3/8" Union Tee (White Polypropylene)
NSF® Certified John Guest® 3/8" Union Tee (White Polypropylene)
QTY:
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John Guest® 1/2" Union Tee (White Polypropylene)
NSF® Certified John Guest® 1/2" Union Tee (White Polypropylene)
QTY:
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John Guest® 1/4" Union Tee (Acetal)
NSF® Certified John Guest® 1/4" Union Tee (Acetal)
QTY:
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John Guest® 3/8" Union Tee (Acetal)
NSF® Certified John Guest® 3/8" Union Tee (Acetal)
QTY:
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John Guest® 1/2" Union Tee (Acetal)
NSF® Certified John Guest® 1/2" Union Tee (Acetal)
QTY:
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John Guest® 3/4" x 3/4" x 3/4" CTS Union Tee (White Polypropylene)
NSF® Certified John Guest® 3/4" x 3/4" x 3/4" CTS Union Tee (White Polypropylene)
$7.35
QTY:
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John Guest® 1" x 1" x 1" CTS Union Tee (White Polypropylene)
NSF® Certified John Guest® 1" x 1" x 1" CTS Union Tee (White Polypropylene)
$13.80
QTY:
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Equal Cross Connectors

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John Guest® 3/8" (OD) Equal Cross Connector
NSF® Certified John Guest® 3/8" (OD) Equal Cross Connector
QTY:
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Reducing Branch Tees - Reducing Tees

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John Guest® 3/8" x 3/8" x 1/4" Reducing Branch Tee (Acetal)
NSF® Certified John Guest® 3/8" x 3/8" x 1/4" Reducing Branch Tee (Acetal)
QTY:
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John Guest® 1/2" x 1/2" x 3/8" Reducing Branch Tee (Acetal)
NSF® Certified John Guest® 1/2" x 1/2" x 3/8" Reducing Branch Tee (Acetal)
QTY:
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Reducing Elbows

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John Guest® 3/8" x 1/4" Reducing Elbow (Acetal)
NSF® Certified John Guest® 3/8" x 1/4" Reducing Elbow (Acetal)
QTY:
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Male Connectors - Straight Adaptors

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John Guest® 1/4" x 1/8" NPTF Male Connector (White Polypropylene)
NSF® Certified John Guest® 1/4" x 1/8" NPTF Male Connector (White Polypropylene)
QTY:
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John Guest® 1/4" x 1/4" NPTF Male Connector (White Polypropylene)
NSF® Certified John Guest® 1/4" x 1/4" NPTF Male Connector (White Polypropylene)
QTY:
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John Guest® 3/8" x 1/4" NPTF Male Connector (White Polypropylene)
NSF® Certified John Guest® 3/8" x 1/4" NPTF Male Connector (White Polypropylene)
QTY:
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John Guest® 3/8" x 3/8" NPTF Male Connector (White Polypropylene)
NSF® Certified John Guest® 3/8" x 3/8" NPTF Male Connector (White Polypropylene)
QTY:
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John Guest® 1/2" x 3/8" NPTF Male Connector (White Polypropylene)
NSF® Certified John Guest® 1/2" x 3/8" NPTF Male Connector (White Polypropylene)
QTY:
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John Guest® 1/4" x 1/4" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 1/4" x 1/4" NPTF Male Connector (Acetal)
QTY:
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John Guest® 1/4" x 3/8" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 1/4" x 3/8" NPTF Male Connector (Acetal)
QTY:
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John Guest® 3/8" x 1/4" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 3/8" x 1/4" NPTF Male Connector (Acetal)
QTY:
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John Guest® 3/8" x 3/8" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 3/8" x 3/8" NPTF Male Connector (Acetal)
QTY:
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John Guest® 3/8" x 1/2" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 3/8" x 1/2" NPTF Male Connector (Acetal)
QTY:
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John Guest® 1/2" x 1/2" NPTF Male Connector (Acetal)
NSF® Certified John Guest® 1/2" x 1/2" NPTF Male Connector (Acetal)
QTY:
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John Guest® 3/4" CTS x 3/4" NPT Male Connector
NSF® Certified John Guest® 3/4" CTS x 3/4" NPT Male Connector
$5.10
QTY:
Add to Cart
John Guest® 1" CTS x 1" NPT Male Connector
NSF® Certified John Guest® 1" CTS x 1" NPT Male Connector
$7.75
QTY:
Add to Cart

Fixed Elbows - Rigid Elbow Adaptors

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John Guest® 1/4" OD x 1/8" NPTF Fixed Elbow (White Polypropylene)
NSF® Certified John Guest® 1/4" OD x 1/8" NPTF Fixed Elbow (White Polypropylene)
QTY:
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John Guest® 1/4" OD x 1/4" NPTF Fixed Elbow (White Polypropylene)
NSF® Certified John Guest® 1/4" OD x 1/4" NPTF Fixed Elbow (White Polypropylene)
QTY:
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John Guest® 3/8" OD x 1/4" NPTF Fixed Elbow (White Polypropylene)
NSF® Certified John Guest® 3/8" OD x 1/4" NPTF Fixed Elbow (White Polypropylene)
QTY:
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John Guest® 3/8" OD x 3/8" NPTF Fixed Elbow (White Polypropylene)
NSF® Certified John Guest® 3/8" OD x 3/8" NPTF Fixed Elbow (White Polypropylene)
QTY:
Add to Cart
John Guest® 1/4" OD x 1/4" NPTF Fixed Elbow (Acetal)
NSF® Certified John Guest® 1/4" OD x 1/4" NPTF Fixed Elbow (Acetal)
QTY:
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John Guest® 1/4" OD x 3/8" NPTF Fixed Elbow (Acetal)
NSF® Certified John Guest® 1/4" OD x 3/8" NPTF Fixed Elbow (Acetal)
QTY:
Add to Cart
John Guest® 3/8" OD x 1/4" NPTF Fixed Elbow (Acetal)
NSF® Certified John Guest® 3/8" OD x 1/4" NPTF Fixed Elbow (Acetal)
QTY:
Add to Cart
John Guest® 3/8" OD x 3/8" NPTF Fixed Elbow (Acetal)
NSF® Certified John Guest® 3/8" OD x 3/8" NPTF Fixed Elbow (Acetal)
QTY:
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Flow Restrictors

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John Guest® 1/4" JG x 3/8" NPTF Male Connector w/ 0.5 GPM Flow Restrictor
John Guest® 1/4" JG x 3/8" NPTF Male Connector w/ 0.5 GPM Flow Restrictor
QTY:
Click model #
for more info
John Guest® 1/4
John Guest® 1/4" JC x 3/8" NPT Fixed Elbow w/ 1 GPM Stainless Steel Flow Restrictor
QTY:
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Plug-In Elbows - Stem Elbows

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John Guest® 1/4" x 1/4" Plug-In Elbow (White Polypropylene)
NSF® Certified John Guest® 1/4" x 1/4" Plug-In Elbow (White Polypropylene)
QTY:
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John Guest® 3/8" x 1/4" Plug-In Elbow (White Polypropylene)
NSF® Certified John Guest® 3/8" x 1/4" Plug-In Elbow (White Polypropylene)
QTY:
Add to Cart
John Guest® 3/8" x 3/8" Plug-In Elbow (White Polypropylene)
NSF® Certified John Guest® 3/8" x 3/8" Plug-In Elbow (White Polypropylene)
QTY:
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John Guest® 1/4" x 1/4" Plug-In Elbow (Acetal)
NSF® Certified John Guest® 1/4" x 1/4" Plug-In Elbow (Acetal)
QTY:
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John Guest® 3/4" CTS × 3/4" Plug-In Elbow (White Polypropylene)
NSF® Certified John Guest® 3/4" CTS × 3/4" Plug-In Elbow (White Polypropylene)
$4.20
QTY:
Add to Cart

Plugs

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John Guest® 1/4" Plug
NSF® Certified John Guest® 1/4" Plug
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John Guest® 3/8" Plug
NSF® Certified John Guest® 3/8" Plug
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John Guest® 1/2" Plug
NSF® Certified John Guest® 1/2" Plug
QTY:
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Reducers

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John Guest® 3/8" Stem OD x 1/4" Tube OD JG Reducer
NSF® Certified John Guest® 3/8" Stem OD x 1/4" Tube OD JG Reducer
QTY:
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Faucet Connectors

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John Guest® 1/4" JG x 7/16" Faucet Connector
NSF® Certified John Guest® 1/4" JG x 7/16" Faucet Connector
QTY:
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John Guest® 3/8" JG x 7/16" Faucet Connector
NSF® Certified John Guest® 3/8" JG x 7/16" Faucet Connector
QTY:
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Female Adaptors

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John Guest 1/4
John Guest 1/4" FNPT x 1/4" OD Female Adaptor
QTY:
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John Guest® 3/4" CTS x 3/4" NPT Female Connector
NSF® Certified John Guest® 3/4" CTS x 3/4" NPT Female Connector
$10.65
QTY:
Add to Cart

Stem Adaptors

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John Guest® 1/4" Tube x 1/4" NPTF Stem Adaptor
NSF® Certified John Guest® 1/4" Tube x 1/4" NPTF Stem Adaptor
QTY:
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John Guest® 3/8" Tube x 1/4" NPTF Stem Adaptor
NSF® Certified John Guest® 3/8" Tube x 1/4" NPTF Stem Adaptor
QTY:
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John Guest® 3/8" Tube x 3/8" NPTF Stem Adaptor
NSF® Certified John Guest® 3/8" Tube x 3/8" NPTF Stem Adaptor
QTY:
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John Guest® 3/8" Tube x 1/4" NPTF Stem Adaptor (Acetal)
NSF® Certified John Guest® 3/8" Tube x 1/4" NPTF Stem Adaptor (Acetal)
QTY:
Add to Cart
John Guest® 1/4" Tube x 1/4" NPTF Stem Adaptor (Acetal)
NSF® Certified John Guest® 1/4" Tube x 1/4" NPTF Stem Adaptor (Acetal)
QTY:
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End Stops

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John Guest® 1/4" End Stop
NSF® Certified John Guest® 1/4" End Stop
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John Guest® 3/8" End Stop
NSF® Certified John Guest® 3/8" End Stop
QTY:
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Bulkhead Unions - Bulkhead Connectors

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John Guest® 1/4" x 1/4" Bulkhead Union
NSF® Certified John Guest® 1/4" x 1/4" Bulkhead Union
QTY:
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John Guest® 3/8" × 3/8" Bulkhead Union
NSF® Certified John Guest® 3/8" × 3/8" Bulkhead Union
QTY:
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Locking Clips

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John Guest® 1/4" Locking Clip
NSF® Certified John Guest® 1/4" Locking Clip
QTY:
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John Guest® 3/8" Locking Clip
NSF® Certified John Guest® 3/8" Locking Clip
QTY:
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John Guest® 1/2" Locking Clip
NSF® Certified John Guest® 1/2" Locking Clip
QTY:
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