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Gray acetal copolymer faucet adapter, 1/4 in tube x 7/16 in pipe, pack of 10

John Guest

John Guest CI-3208U7-S trap 1/4 in tube 7/16 in pipe 150 psi pack 10

SKU CH-S100-447RH MPN CI-3208U7-S

Acetal copolymer faucet adapter connects 1/4 inch tube to 7/16 inch pipe, rated 150 psi with NSF-51 and NSF-61 approval, pack of 10

  • TypeDrain Components
  • ColorGray
  • Connects 1/4 in tube to 7/16 in pipe
  • Rated for 150 psi in air and water systems
  • Acetal copolymer resists temperatures from -14 °F to 167 °F
  • NSF-51 and NSF-61 certified for drinking water and food contact
  • Pack of 10 fittings for multiple installations

Faucet Adapter for 1/4 in Tubing

This John Guest CI-3208U7-S adapter connects 1/4 inch tubing to a 7/16 inch male pipe thread. The acetal copolymer body is gray and rated for 150 psi maximum pressure. It meets NSF-51, NSF-61 and FDA standards for food and drinking water contact. The pack contains ten fittings for multi-point installations.

Check Thread Size and Media Temperature

Verify that your existing port accepts a 7/16 inch male NPT connection before ordering. Confirm the system pressure stays at or below 150 psi during operation. Ensure the media temperature remains between 33 and 140 degrees F for water or between -14 and 167 degrees F for air. The acetal copolymer material must be compatible with the specific fluids used in your application.

Ten-Pack Simplifies Multi-Fixture Jobs

The ten-piece quantity lets you equip several faucets or distribution points without opening multiple packages. Each fitting carries the same NSF and FDA certifications, so every connection meets the same potable-water standard. Having spares on hand reduces downtime if a fitting is damaged during installation or routine maintenance.

Highlights

  • Connects 1/4 in tube to 7/16 in pipe
  • Rated for 150 psi in air and water systems
  • Acetal copolymer resists temperatures from -14 °F to 167 °F
  • NSF-51 and NSF-61 certified for drinking water and food contact
  • Pack of 10 fittings for multiple installations

Specifications

TypeDrain Components
ColorGray
BrandJohn Guest
ModelCI-3208U7-S

Questions about this item

Does the pack of 10 CI-3208U7-S adapters include any extra fittings or tools?

The pack contains ten gray acetal copolymer faucet adapters with 1/4 in tube and 7/16 in MNPT connections; no additional fittings or tools are included.

When should I choose the 1/4 in tube size over other tube diameters?

Select the 1/4 in tube size when your supply line or appliance connection is 1/4 in OD; the adapter mates that tube to a 7/16 in male pipe thread.

What does the 150 psi rating mean when the adapter is installed in a water line?

The 150 psi maximum pressure applies at water temperatures up to 140 °F; above that temperature the pressure limit is lower.

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