TmallTech 1/4" Quick Connect Check Valve for RO Pure Water Reverse Osmosis System

It is a good product.

Needed for water dispenser on fridge to connect to the mains. Works perfectly.

Exactly as advertised, and came within 24 hours. Can't ask better than that.

Valvola di non ritorno perfetta. Installazione in 3 minuti. L'importante è rispettare la freccia stampata che indica il verso in cui l'acqua deve passare. Non perde e fa egregiamente il suo lavoro. Servizio Amazon perfetto come al solito!!!!

Smaller than I expected, works like a charm, easy to install. The shipping was so wrong. This little guy was packaged in a box that probably 50 of them could have fit into. Why it wasn't sent in an envelope is confusing. Guess they just wanted to practice on filling the box with air packs.The price is good for this valve and I would put it up against its bigger named competitors as working just as well. It is small but mighty. I would buy it again.

Arrived fast, worked as described. Seems well built, came with clips. No complaints.

No leaks, works well and does not seem to reduce the flow too much (yes, any time you got a check valve the flow and pressure will be a bit reduced, it is just the nature of the device). Orientation is key, make sure you don't install them backwards because they won't work for sure; there is an arrow indicating direction of flow on the device.