Aquatec (PSW380-00) Tank Shut Off Pressure Switch 80 PSI; 3/8" JG

These aquatec shut off pressure switches are good for exactly with their intended. Generally the come in 20 -psi ranges. I think this is the 60-80psi, 20-40psi in other models. Usually they specify the top psi value, so 80psi is the off pressure, and as you deplete your tank pressure it will turn back on at 60psi. There is a single adjustment bolt on this, usually a small hex key. The size may vary, and I forget what this one was.The aquatec model numbers are helpful. PSW380-00 means its a 3/8" size (john guest) fitting, and 80psi shut-off. An alternate, PSW280-00 would indicate "2" for the 1/4" size, 80psi. The model varies for 20, 40, 60, 80psi shutoff with an 20psi range generally. While you can move that 20psi up and down as a range, you can't individually adjust the top independent of the bottom, and vice-versa. Though I would prefer that with 2 screws, these are simple devices, using a spring usually, to control the mechanical switch. I think the pressure can be adjusted up/down somewhat, but I wouldn't necessarily expect to go from 80psi top, down to 20; I'm not sure its made to do that.Usually these switches have a label on the side with factory setting of the psi top level. Other brands often do not, lead you to guess if you have multiple of these sitting around.It's highly recommend you get this along with a pressure gauge you can put inline, good for troubleshooting and knowing its doing what you want it to do, especially on first hookup. Otherwise adjusting is blind and while factory setting may be accurate, there is a slight possibility of it being a few psi off.

Works as it should. Easily pairs with Aquatec pumps. Nice simple installation

I didn't pay attention to the pressure rating. I was focused on the 3/8" connections, not the 80 psi trigger. I needed it for an R/O system that functions at between 30-40 psi.

only did 60 psi ordered 80psi turned up pressure screw all the way was able to get to 80 psi. with no help from them

These switches are fine if you don't care about the on/off range increasing as time goes on. For me it matters because I don't want to drop under 80 psi. Both switches set fine from 80-100psi, but after light use they both no longer activate until 60ish psi.This is disappointing because I hoped it was just a bad switch, but the second is even worse.