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John Guest Check Valve with 1/4" Quick Connect Fittings 1/4SC

Q&As

John Guest Check Valve with 1/4" Quick Connect Fittings 1/4SC

Q&As
Part Number: 1/4SCV
Alt Part Number: 1-4SCV
Check valve prevents reverse water flow and protects RO systems with 1/4 inch quick connect fittings. Read More
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$17.99
IN STOCK

Description

The John Guest 1/4SCV Single Check Valve ensures protection against flow reversal and has 1/4" quick connect fittings for fast installation. Please see the instructions on how to connect and disconnect John Guest fittings and connectors. John Guest parts make connecting fixtures and equipment fast and simple, and repair and maintenance work easier too.

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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: 3.0 / 5 from 2 reviews.

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Reviews

Thank you ESP

"These folks helped resolve my RO system issues. Very professional, knowledgeable, and valve received quickly. Changing the check valve, along with the ASV got my system up and running again. Thanks ESP."

— Terry A. (5/5)

Spare

"Did not replace yet. This is a spare"

— Jeff E. (1/5)

Q&A

Frequently Asked Questions

Q:

What does the John Guest 1/4SCV check valve do?

A:

It allows water to move in one direction while helping prevent reverse flow in a compatible 1/4-inch tubing line.

Q:

What tubing size fits the 1/4SCV?

A:

Both ends accept 1/4-inch outside-diameter tubing using John Guest quick-connect fittings.

Q:

How do I identify the correct flow direction?

A:

Follow the arrow or flow marking on the valve body. Installing it backward will restrict the intended flow.

Q:

How should tubing be inserted?

A:

Cut tubing square and free of scratches, push it fully to the internal stop, and pull back gently to confirm engagement.

Q:

Can this valve replace every RO check valve?

A:

No. Match tubing size, flow direction, pressure rating, material, and the function of the original valve. Some RO membranes use a different integrated check valve.

Q:

What should I check after installation?

A:

Restore pressure slowly, inspect both connections for leaks, and confirm forward flow and reverse-flow blocking in the intended application.

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John Guest Check Valve with 1/4" Quick Connect Fittings 1/4SC

$17.99