Amazon.com: John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP : Everything Else
John Guest Acetal Copolymer Tube Fitting, Cross, 3/8" Tube OD (Pack of 10): Push To Connect Tube Fittings: Amazon.com: Industrial & Scientific
John Guest 3/8-in Push-to-Connect Coupling (10-Pack) in the Push to Connect Fittings department at Lowes.com
John Guest CI061208W Stem Reducer 3/8" Stem x 1/4" QC White - ESPWaterProducts.com
John Guest Acetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/4" BSPT Male (Pack of 10): Push To Connect Tube Fittings: Amazon.com: Industrial & Scientific
John Guest Polypropylene Push-to-Connect Bulkhead 3/8" x 3/8", PP1212W
John Guest 3/8" x 3/8" White PolypropylenePlug-In Elbow - [ H2OFilterWarehouse.com ]
John Guest 3/8" JG x 7/16" Faucet Connector – H2O Distributors
John Guest Quick Connect Reducing Union Fitting 3/8 x 5/16
John Guest 3/4 in GH x 3/8 Tube Push-to-Connect Elbow Connector
John Guest PI451214CS Gray Acetal Female Connector 3/8 x 1/2 BSPP (Cone End) Bag of 10
JOHN GUEST 3/8 in. x 1/4 in. Polypropylene Push-to-Connect Female Compression Faucet Connector Fitting (10-Pack) PP3212U7W - The Home Depot
John Guest PI061208S | 3/8" Stem x 1/4" Tube Reducer Fitting | Quick Connect | WaterAnywhere
John Guest 1/4-in Fip x 3/8-in Push-to-connect Polypropylene Quarter Turn Supply 10-Pack in the Shut-Off Valves department at Lowes.com
Male Connector, 1/8 in. to 3/4 in. Sizes
John Guest Male Connector 1/4" Tube OD x 3/8" Thread NPTF Acetal Gray
3/8SCV-US John Guest 3/8" White/Red Cap Check Valve — American Copper & Brass
John Guest 3/8" x 3/8" Bulkhead Union (Acetal) – H2O Distributors
John Guest 3/8" QC X 1/4" Quick Connect Union Reducing Connector
John Guest PP011222W Straight Male Adapter 3/8" OD x 1/4" NPTF - KlearWaterStore.com
John Guest 3/8 in. Push-To-Connect x 3/8 in. MIP Polypropylene Adapter Fitting 803239 - The Home Depot
JOHN GUEST 3/8 in. x 3/8 in. x 1/4 in. Push-to-Connect Reducing Tee Fitting (10-Pack) PP30121208W - The Home Depot
John Guest Tank Ball Valve 3/8" Tube OD x 1/4" Thread NPTF
John Guest 3/8 BSPT to 3/8" Tube Fitting | Seattle Coffee Gear
John Guest Stem Elbow Connector - 3/8 Stem x 5/16 – Fresh Water Systems
1/2" John Guest Fitting Three Way Divider to 3/8"
John Guest 3/8-in Push-to-Connect Female Adapter (10-Pack) in the Push to Connect Fittings department at Lowes.com
John Guest 3/8" One Way Check Valve – H2O Distributors