
These check valves are generally terrible. First, they are not chemically resistant at all, since after exposure to acid, the plastic began to crumble. In addition, they also have an annoyingly high forward pressure threshold, so there will be quite a bit of pressure in my system before they finally deploy. I suppose the only good thing is that they're four bucks, so I don't mind having to buy different check valves.

12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review

6 Pack Miahart Adjustable 304 Stainless Steel 4 Inch Hose Clamp Duct 91Mm-114Mm Worm Gear Pipe Clamp For Automotive, Mechanical Agriculture.
18 Review

Vacuum cleaner Dreame V9 Global, white
145 Review

DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review