The 5 Best RO system check valves (2023 reviews)

The apec water systems original valve gives the top-tier valve a run for their money by offering flagship advantages at a much more affordable price. This valve is a direct replacement to the original one and it’s very easy to replace without any tool. Featured with 1/4" quick-connect fittings, this auto shut off valve can be easily connected and disconnected to your system. The valve on the line flow side can normally be installed anyway. There is a high pressure side on the top of the unit that is marked with "in" and "out" indications. It will continually flow water into the drain.

The valve comes with installation instructions and is a breeze to replace. The ASO does have marks that say "in" and "out" indications. It only runs when actually making clean water. THIS CAN TAKE 5-10 MINUTES.

Why We Like This:

Perfect replacement for watts premier ro pure system
Super easy to replace, stopped drain leak
More growling, no leaks, life is good

Best Runner up: APEC Water systems RO system check Valve

Buy on Amazon

We are personally inclined towards apec water systems ro system check valve, it is not so pricy, but it overachieves its purpose and outstanding in important aspects.

Why We Like This:

Light weight, easy to install and unload
Delivers what they promise

Best with most reverse osmosis systems: ispring RO system check Valve

Buy on Amazon

It provides excellent customer service and it is great with a check-valve in a self installed 6 stage ro system. It allows your system to turn off the water supply when the tank pressure reaches approximately 65% of the supply water pressure. The valve is super easy to change. It is compatible with most reverse osmosis systems (including brand names) on the market.

Why We Like This:

Ispring automatic shut-off valve (asv) - quick fitting
Worked great with a check-valve in a self installed 6 stage ro system
New and hot release

Best with no leaks: Dgzzi RO system check Valve

Buy on Amazon

The dgzzi ro system check valve's superior materials makes sure that it ages well with use. It fits all understage water purifier systems. It is made of high-quality pom materials, healthy, safe, and durable. It comes with locking tabs that prevent the tubing from being unintentionally released.

Why We Like This:

Inch quick-connect check valve to prevent liquid backflow
Functionally perfect, if you don't mind the squeak
Accessories for beverage and water filtration systems
Lightweight and easy to install and uninstall

Best Premium: Longdex RO system check Valve

Buy on Amazon

Not everyone likes to purchase valve for their daily usage, but the longdex ro system check valve would be an anomoly. It is suitable for most reverse osmosis water systems. The RO valve allows your water filter to turn off the water supply when the tank pressure reaches approximately 65% of the supply pressure. After the purifying faucet is closed, it automatically cuts off the water inlet of the RO membrane shell.

This product needs to be used under water pressure above 2kg. The pure water outlet of the membrane shell is connected to the upper port of the IN port. It doesn't take long to shut off, which is great because the old one takes a while.

Why We Like This: