Series LF25AUB-Z3 Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce water consumption. This series is suitable for water supply pressures up to 300 psi (20.7 bar) and may be adjusted from 25 - 75 psi (172 - 517 kPa). The LF25AUB-Z3 features Lead Free construction to comply with Lead Free installation requirements.
Standard construction includes Z3 sealed spring cage and stainless steel corrosion resistant adjusting and cage screws for accessible outdoor or pit installations
Union inlet connection
Integral stainless steel strainer
High temperature resistant reinforced diaphragm for hot water
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Inlet Diameter (In.)
Outlet Diameter (In.)
Product Height (in.)
Product Length (in.)
Product Width (in.)
Compatible Pipe Material
Female Pipe Thread
Maximum Pressure (psi)
Maximum Working Temperature (F)
Product Weight (lb.)
Warranty / Certifications
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out of 4 reviews
100% recommend this product
Showing 1-4 of 4 reviews
Jan 21, 2020
Worked great, used my existing unions and it still fit....
Worked great, used my existing unions and it still fit. (Same brand of course). Only giving Good rating because shipping was far longer than expected. If my old one had had a leak instead, it would have been a very long time with no water.Symptoms: My water heater temp/pressure valve was spraying hot water out maybe a few times a day. I had also noticed maybe 3 years ago that my water pressure increased a lot, causing loud flow sound in the house pipes. I tested at about 95PSI. But was loving it, so didn't think to consider something was bad in the system. After putting this new one in, I turned it up to 75PSI (It's max) and tested that to be relatively accurate. No problems since, maybe 1 month later so far.
Jan 22, 2019
Easy to install
Easy to install
Dec 18, 2018
The pressure reduceing value worked just how it is supposed...
The pressure reduceing value worked just how it is supposed to. Installation was easy and pressure adjustment was easy also .
1 person found this helpful
Oct 8, 2014
Good Product, super fast delivery
This is a pretty standard water pressure regulator that looks identical to the old one which was probably 20 years old (just a guess). It seems to be good quality, came with everything needed for installation and was delivered much more quickly than I expected. No complaints at all here.