Review on 🐠 Enhance Aquarium Efficiency with Dr.Moss Stainless Steel Check Valve for Air Co2 Line 4/6mm Tubing Regulator Diffuser Plants Tank by Jenny Smith

ordered 2 of these, 1 arrived Friday last week, the 2nd arrived Saturday. As for the second, all I had was a plastic bag with a card and a hole in the empty pocket. no ck.valve.Update I would not recommend these valves, I thought s.steel would work in a CO'2 system. The other day I was sitting there and I heard this loud bang. Looked in the direction of the noise and saw the bubble counter leaking oil from the CO2 line. I had this check valve on a line from a gauge to a diffuser in an aquarium. The non-return valve was completely clogged, the slide burned out on the inside. The psi build up caused the thick, heavy gauge silicone tubing to rupture about 1ft upstream of the CO2 regulator just before the 2nd CK valve. Stainless steel valve He toasted the cheap plastic I have between the bubble counter and the CO2 tank, works fine. I would not recommend this valve. I rarely review or complain about a 5.00 item but only get one after paying for two with no response from seller and the one I got took 5 months buy a cheaper plastic item I have get him 2 here for about 3.00.