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.

John Guest Valves
John Guest Valves
John Guest Fittings
John Guest Fittings
John Guest CTS Fittings
John Guest CTS Fittings
John Guest Tubing
John Guest
Tubing
Organic Fittings
Organic Fittings
Installation Accessories
Installation Accessories

Nipples

Pressure Reducing Valves
Connection Kits
Connection Kits

John Guest CTS Connectors

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John Guest CTS Valves

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John Guest CTS Elbows

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John Guest CTS Tees

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John Guest CTS Reducers

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