3/8" LFUSG-B-M2 Under Sink Guardian Thermostatic Mixing Valve (Lead Free)

Easy install. Easy to adjust.

I chose it to let me use a non-temperature mixing faucet in my retirement home. this residence must have a state approved temperature limiting hot water output. Installation and function is brilliant. It is accurate and consistent in use. I set it to 110 degrees.

Installed two of these to serve lavatories in public restrooms. Fast delivery. Reasonable price. Easy to install and temperature was easy to lock in. I liked the mounting holes to secure them up under the fixture.

This mixing valve works great. There is a bit of temperature overshoot and undershoot when you first switch it on. I need to wait a few seconds before putting my hands in the warm water. Even with the brief overshoot on temperature, the water doesn't get hot enough to hurt. The 3/8" lines fit both my new 3/8" OD hose and my existing hose from 15 years ago. The temperature was easy to adjust to 97°F (using a digital oven thermometer to provide feedback).

Replaces one that conked out, so installed quickly. Dialled it up to temp for warming baby bottles, holds temp. Arrived two days before predicted date. Fast purchase, ship, works, the trifecta.

Used this product for a jacuzzi tub for protection from the hot water !

Installed a childs sink next to kitchen sink and needed to temper the hot water. This worked great. 3/8 connections to existing valves made it a breeze to install. Cost effective, fast install and easy to adjust water temperature.

Would recommend using brass lines not pex. Pex lines were hard to curve between supply stops the valve and valve to the bottom of faucet. I would only use this again if required by code or a concern with scalding.

I had recently done a Combi boiler install and the folks loved the performance of their new unit. They were enjoying their hot showers and good supply of hot water. They had one issue come up though, there was a sink in there finished basement that was part of a daycare center and they were required to lower the hot water temp to that sink. Not wanting to miss out on those nice hot showers we decided to toss in this mixing valve. Super Simple install with extra set of flexible supply tubes right there under the sink, no cutting or soldering any pipes, it is very easy to adjust, and it works perfectly, I monitored the output with a very sensitive fluke thermometer, held steady.

Installed this under residential sink with 2 handle faucet. Did not want to convert to one handle faucet, but did not want to always have to use both handles. Wanted to just turn on Hot (Warm) faucet, and not worry about getting too hot. Now it is perfect. Hot handle can be turned on, and once it is to temp, the valve begins mixing cold in to keep temp from exceeding max. Adjustment under sink with screwdriver is easy, and seems to hold well (hasn't needed readjustment). This keeps from needing to lower max temp for whole house. Wanted to keep hot water at laundry sink, kitchen sink, and for shower, without installing a whole house tempering valve or reducing water heater setting (standard gas heater). Items needed for install: Likely two extra supply lines for connecting from valve to supply stops. I ended up using supply lines and short pieces of copper tube/ferrules to complete installation.