Pros
Reduces high water pressure effectively.
Durable and corrosion-resistant materials.
Easy installation with multiple connection options.
Cons
Noisy when running.
Tech specs
product dimensions | 6 x 3 x 6 inches 3.3 Pounds |
department | Unisex-Adult |

Product Overview
I recently had the pleasure of using the Watts LF25AUB Z3 Water Pressure Reducing Valve in a commercial, industrial, and residential setting. I was impressed with the products performance and features, and Im sure you will be too.
The Watts LF25AUB Z3 is designed to reduce water pressure in plumbing systems, reducing consumption in commercial, industrial, and residential settings. The valve has a range of 25 to 75 psi 172 to 517 kPa , with the standard setting at 50 psi 345 kPa . It is made from lead free copper silicon alloy and features stainless steel strainer with corrosion resistant adjusting and cage screws as well as a high temperature diaphragm and replaceable seat module. The end connections are compatible with PEX, CPVC, and QuickConnect fittings. The valve also includes a standard bypass feature that permits the flow of water back through the valve into the main when pressures exceed the pressure in the main supply due to thermal expansion on the outlet side of the valve.
Installation was easy I was able to complete it myself without any help within an hour or so. All necessary parts were included in the package and clear instructions were provided so that I could get it up and running quickly and easily. The finished product looks great it fits perfectly into my existing plumbing system and provides reliable performance.

I have been using this valve for several months now, and I must say that I am thoroughly impressed it works exactly as advertised! It has reduced our water consumption significantly while still providing enough water pressure for all our needs. Additionally, it is well built I have not had any issues with corrosion or other problems since installing it.
Overall, I am very pleased with my purchase of the Watts LF25AUB Z3 Water Pressure Reducing Valve. It is well constructed, easy to install, reliable, and cost effective all qualities that make it an excellent choice for both commercial, industrial, and residential applications. If youre looking for a quality valve that will reduce your water consumption while still providing adequate pressure levels for your needs, then this is definitely worth considering!
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Compare relief valvesFrequently asked questions
- What is the purpose of the Watts LF25AUB Z3 Water Pressure Reducing Valve?
- What is the range of the water supply pressures for this valve?
- What materials are used to make this valve?
- What connections can I use to attach this valve?
- Does this valve have a bypass feature?
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