uxcell Black Adjustable Knob 0.1-1 GPM Panel Type Water Flow Meter LZM-15

This is an excellent water flow meter! It uses a fine needle valve for controlling the flow very accurately and consistently where it doesn't "hiss" from pulling in air as water flows through it. Works perfectly for the panel I designed and built for my use. I mounted it on a nylon "cutting board" that measures 5/16" thick where the mounting screws on the meter are 3/8" thick, so they just barely work. The back connectors are 1/2" plastic pipe threads which are perfect for the common brass adapters you need to use, just don't over-tighten! Highly recommended for your very fine and accurate water flow measurement needs.

Works perfectly for my application, with fine resolution flow control. Threaded in/out fit standard ntp threaded fittings.Wish the mounting threads were longer. Perfect for 1/8" face material, but any thicker will need to be countersunk.Note that the picture and description are correct that this is a .1 - 1 GPM instrument. The "product features" section and specifications say "LPM".

I installed this to meter the hypochlorite saturated water feed to my pool for chlorine treatment. It's been installed for two months now and is working great. The scale is easy to read, the needle valve adjusts flow easily.

Good Quality, ordered this for a prototype - worked great!

Excellent quality, does the job very well, happy customer!

We have several of these in our Water Treatment Plant, and they work very well for us. Occasionally I have to clean the inside of the sight glass, and all you do is remove the top screw for that, very simple. The 1/2 inch connections on the back are also male threaded 1/4 inch on the inside. For my application that was very convenient. I'm not sure if that little feature was disclosed in the description of the product.

surprisingly dead on for accuracy