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Express Water Leak Stop Valve for Reverse Osmosis and Under Sink Water Filtration System – Automatic Water Shut-Off Valve for Water Filtration Systems – Shut Off Water Supply When Water Leaks

Express Water Leak Stop Valve for Reverse Osmosis and Under Sink Water Filtration System – Automatic Water Shut-Off Valve for Water Filtration Systems – Shut Off Water Supply When Water Leaks

Q: Anyone have any experience of this shutoff device actually successfully shuting off the water after leaked developed, preventing flooding?

I tested it and it works perfectly. But the shut off needs to be near the potential leak. If its too far away it wont get wet enough and wont expand the disk. Its a great invention. Get some extra disks and try yourself to make sure the set up is positioned well.

Q: My tubing is 3/8, would this valve work?

This accepts 1/4” tube so no it won’t work. Unless you get two 3/8” to 1/4” couplers and some 1/4” tube then you can make it work.

Product ID: 81064965

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Details

Material
Polypropylene
Item Weight
1.1 Ounces
Brand
EXPRESS WATER
UPC
641990962772
Global Trade Identification Number

⚡Fast automatic shut-off

💧Instant leak detection

🔧Universal ¼” quick-connect

Frequently Bought Together

Description

💧 Stop leaks before they start — your water’s silent guardian!

SMART INVESTMENT - Save time and money by avoiding water damage with a reliable, expert-backed valve.
EFFORTLESS INSTALLATION - Quick-connect ¼” fittings and included mounting screws make setup a breeze.
UNIVERSAL COMPATIBILITY - Seamlessly integrates with reverse osmosis, coffee machines, refrigerators, and more.
DURABILITY YOU CAN TRUST - Crafted from robust polypropylene for long-lasting leak protection.
LEAK DETECTION IN A FLASH - Automatically cuts water supply the moment moisture is sensed, preventing costly damage.

The Express Water Leak Stop Valve is a compact, fast-acting automatic shut-off valve designed for under sink reverse osmosis and water filtration systems. Made from durable polypropylene, it detects moisture instantly and stops water flow via universal ¼” quick-connect fittings. Compatible with a wide range of appliances, it includes mounting screws and leak detection pads for easy installation and multiple uses, providing reliable protection against water damage.

Specifications

Material	Polypropylene (PP)
Item Weight	1.1 Ounces
Brand	EXPRESS WATER
UPC	641990962772
Global Trade Identification Number	00641990962772
Unit Count	1.0 Count
Number of Items	1
Manufacturer	Express Water
Part Number	PRTLKS14Q
Item Weight	1.1 ounces
Product Dimensions	4.5 x 6.5 x 2.25 inches
Item model number	PRTLKS14Q
Is Discontinued By Manufacturer	No
Power Source	Corded electric
Item Package Quantity	1
Measurement System	inch
Included Components	Leak Stop Valve
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Anyone have any experience of this shutoff device actually successfully shuting off the water after leaked developed, preventing flooding?

My tubing is 3/8, would this valve work?

For an under sink filter system, does this include any tubing in case your feed supply line is too short to splice device into?

Where do I buy replacement expansion tablets for the valve

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