John Guest® Fittings and Accessories

John Guest Fittings and Accessories

We carry a large inventory of 1/4" & 3/8" fittings, valves & tubing. Recently John Guest expanded their line of White Polypropylene Fittings. These fittings and their o-rings are more resistant to chemical degradation than the Gray Acetal Fittings.

We offer a large selection of both the Polypropylene & Acetal Fittings. Either will work in most applications.

John Guest T-fittings are available in 3 sizes. Most refrigerator and icemaker water lines are 1/4".

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)
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John Guest® 1/4" Union Elbow (Acetal)
NSF® Certified John Guest® 1/4" Union Elbow (Acetal)
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John Guest® 3/8" Union Elbow (Acetal)
NSF® Certified John Guest® 3/8" Union Elbow (Acetal)
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John Guest® 1/2" Union Elbow (Acetal)
NSF® Certified John Guest® 1/2" Union Elbow (Acetal)
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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)
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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)
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John Guest® 1/2" (OD) Straight Union Connector (Acetal)
NSF® Certified John Guest® 1/2" (OD) Straight Union Connector (Acetal)
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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
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John Guest® 1/2" x 3/8" Reducing Union
NSF® Certified John Guest® 1/2" x 3/8" Reducing Union
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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)
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John Guest® 1/2" Union Tee (White Polypropylene)
NSF® Certified John Guest® 1/2" Union Tee (White Polypropylene)
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John Guest® 1/4" Union Tee (Acetal)
NSF® Certified John Guest® 1/4" Union Tee (Acetal)
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John Guest® 3/8" Union Tee (Acetal)
NSF® Certified John Guest® 3/8" Union Tee (Acetal)
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John Guest® 1/2" Union Tee (Acetal)
NSF® Certified John Guest® 1/2" Union Tee (Acetal)
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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
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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
$12.00
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John Guest® 1/4
John Guest® 1/4" JC x 3/8" NPT Fixed Elbow w/ 1 GPM Stainless Steel Flow Restrictor
$12.00
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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)
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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)
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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)
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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)
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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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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
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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
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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
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Female Adaptors

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John Guest® 1/4
John Guest® 1/4" FNPT × 1/4" OD Female Adaptor
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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
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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
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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
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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
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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
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John Guest® 3/8" × 3/8" Bulkhead Union
NSF® Certified John Guest® 3/8" × 3/8" Bulkhead Union
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Locking Clips

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

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John Guest® Collet Release Tool - Not Required to Release Connection
John Guest® Collet Release Tool - Not Required to Release Connection
$1.25
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John Guest® Tube Cutter
John Guest® Tube Cutter
$8.00
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John Guest® Tube Cutter Replacement Blades
John Guest® Tube Cutter Replacement Blades
$2.50
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