(2 pack) (2 Pack) Aqua Culture Check Aquarium Valve

from Xanthanias

You will be glad you have this little item, the first time your power goes out... I learned this first hand, when my power went out during the night.. The airhose, that had been pushing air through the line and into the tank, worked like a syphon when the power went out, and started to empty my a...

from SweatyPaws

Just like what the other user say... Please use this with an air pump so that water doesn't siphon back into your air pump and pump water onto your floor. This will prevent that and its very cheap and works very good. Get a few of them at your store.

from Xanthanias

You will be glad you have this little item, the first time your power goes out... I learned this first hand, when my power went out during the night.. The airhose, that had been pushing air through the line and into the tank, worked like a syphon when the power went out, and started to empty my a...

from SweatyPaws

Just like what the other user say... Please use this with an air pump so that water doesn't siphon back into your air pump and pump water onto your floor. This will prevent that and its very cheap and works very good. Get a few of them at your store.

from fishyface

check valve was stuck closed in one and hardly no air pass in another.