Eheim AEH4005410 Double Tap Connector 594 for Aquarium Water Pump

Works great.

I already had two pairs of these costly valves in my filter water system and choose to buy same, rather than retro-fit cheaper, due to a broken valve handle. They installed, fit-in, and performed perfectly to previous same Eheim Valve. Thanks Eheim. All the Eheim Aquarium products I have used are first class, and tend to worth the cost. Their air pumps are of amazing quality and performance. Their hoses are expensive, but it's surprising how well they perform and stay fit.Michigan

These make cleaning my lily pipes so much easier ...and safer. No leaks after a few months of use.They are somewhat over-priced but really worth it.

Bought this to replace valves on a Magnum filter.

works great