💧 Efficient 4 Inch Connect Fitting Reverse Osmosis for Optimal Water Purification Review

I've used 3 of the 5 I bought and they work very well. Easy install, no leaks and works well. The price is a real plus. I plan to get many more. I use them in chlorination plants.

I need a quick connect check valve for my built in fridge as I have a common water source that I cannot replace. It did exactly what I needed and I have spares should I ever need them. Easy to install and no hassles from start to finish. I would recommend if you need a check valve with a 1/4" quick connect.

I initially bought about 8 of these bags and used them very little but it seems that about 1 bag in each bag is either broken or breaks shortly after use. I'm only using pure reverse osmosis water and have tried high pressure through the broken valves to remove everything inside but it doesn't do anything so it seems like it's just a mechanism failing. They just don't usually open, but I have one that allows for reflux.