FREE shipping on orders over $ 49

Check Valve

$ 49.00 until FREE shipping

We use these check valves to keep water from siphoning out of the tank when the power is out.  They are made with a rubber flapper instead of a spring like some of the cheaper ones. 

Customer Reviews

Based on 32 reviews
Check valve

Order came quickly as usual. I’ve ordered numerous times. Valveless was not included with the shipment, however they promptly credited my credit card. Best customer service I’ve experienced online hands down

They're fine

It seems to do it's job and fits the standard tubing just fine. Be careful if you include these in a bigger order, they are just tossed into your shipment box without any packaging. It's very easy to lose track of them. They also don't indicate how to orient them, and since they are tossed loosely into your shipment, there's obviously no packaging to indicate that either.

So far so good

Works as expected, haven't had any issues with it leaking. Great for the price!

Install black end towards air source.

My four port air pump is lower than the sponge filters. My three check valves still remain untested as my water fails to siphon over the top of the tank when turning off the air pump. I question if they are necessary. Three stars because I neither like nor dislike the product.

Would buy again.

Feels like quality construction, it doesn't noticably inhibit air flow and they do stop water from siphoning out. I air leak tested 3 of these I am currently using in different conditions for the sake of leaving a review with some data. One had no air leaks, one had a barely detectible air leak, and one had a very noticable air leak. Ultimately the leaks were small and effectively this made no difference in my setups so I won't be looking to replace them and would buy again.