Which pressuretrol??

I have an opinion but I'm not a Pro. I believe the PA404A is more reliable, once you get the pressure calibrated.

I like L404 better.
Don't have to open it to see what's going on.
It has a bigger diaphragm, so more surface area makes me think it's more accurate and durable.

I have bought new PA404 and there bad out of the box.
I keep a 1/4 x 6" nipple in my bag just for testing pressuretrols.
If I set it to 1 psi and I cant get it to click by blowing into it, i replaced it.
Some times manually working the switch frees it up.

My opinion the PA is the cheapest piece crap pressuretrol. I've found too many broken.

Not a lot of options with pressuretrols. Does anybody make them other then honeywell?

So for the pros, you go to all this trouble to set these devices properly, how often do you come back and find someone has messed with them?

Dave0176 said:

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KC_Jones said:

So for the pros, you go to all this trouble to set these devices properly, how often do you come back and find someone has messed with them?

If it’s always me doing the services, I never find any issues.

They should never call anyone else when they have you on the job.