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John Guest CI3212U7S Faucet Connector 3/8" QC x 7/16" Female Threads

Q&As

John Guest CI3212U7S Faucet Connector 3/8" QC x 7/16" Female Threads

Q&As
Part Number: CI3212U7S
Faucet connector connects 3/8 inch tubing to standard faucet threads for filtration installations. Read More
$6.49
IN STOCK

Description

These John Guest fittings were designed for the water industry but can be used in other potable liquid applications as well. The connections make this faucet connector quick and simple to install. Please see the instructions on how to connect and disconnect John Guest fittings and connectors.

Specs
  • Fittings: 3/8" Quick Connect X 7/16" FPT
  • Made of FDA compliant materials
  • Not for compressed air or vacuum applications
Features
NSF Certified
Helpful Info & Downloads

See how to make and release a John Guest push-fit connection, the quick-connect fitting used throughout reverse osmosis and water treatment systems. Covers pushing the tubing home, checking that it is seated, and using the collet to disconnect without tools. Applies to John Guest connectors, elbows, tees, stem reducers, faucet connectors, union connectors, check valves, inline ball valves, angle stop adapters, and RO storage tank valves in 1/4" and 3/8" quick-connect and threaded sizes.

Customer Reviews

Overall rating: 5.0 / 5 from 2 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["fit"].

Review highlights

Reviews

Life saver

"Appreciate the timelines from the order transaction to delivery. Was able to fix my water system with the part with no troubles and just glad there’s a company that focuses on these type of parts and products because finding them at the local hardware store was definitely not the answer"

— Justin S. (5/5)

Perfect fit.

"The piece came in the time frame specified. Couldn´t find it anywhere else. Fit perfectly on my connection."

— Miguel J. (5/5)

Q&A

Frequently Asked Questions

Q:

What sizes does the John Guest CI3212U7S connect?

A:

It connects 3/8-inch OD tubing to a 7/16-24 UNS female thread used on compatible filtered-water faucets.

Q:

Is the 7/16-inch thread an NPT pipe thread?

A:

No. It is a 7/16-24 UNS straight thread associated with a 1/4-inch compression-style faucet connection. Do not substitute a 7/16-inch pipe fitting.

Q:

What tubing can be used with the quick-connect side?

A:

Use compatible plastic or copper OD tubing in the stated size, within the tubing and fitting pressure and temperature limits.

Q:

How do I prevent a leak at the faucet thread?

A:

Confirm the faucet stem uses the matching thread and sealing method, start the nut squarely by hand, and do not overtighten the acetal fitting.

Q:

How is the tube inserted and removed?

A:

Cut it square, push fully to the stop, and tug to check engagement. To remove it, depressurize, press the collet inward evenly, and pull the tube straight out.

Q:

What approvals and pressure limits apply?

A:

John Guest lists NSF 51 and NSF 61 for this fitting family. For 1/4-inch size it lists up to 230 psi at 68°F and 150 psi at 150°F; the 3/8-inch size is listed up to 150 psi at 68°F and 100 psi at 150°F.

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John Guest CI3212U7S Faucet Connector 3/8" QC x 7/16" Female Threads

$6.49