2 Pack Float Ball Valve, 1/2 Inch NPT Thread, OD. 0.84 inch (21.34mm), 3/4 inch, Adjustable Arm for Livestock Water Trough, Aquariums, Hydroponics - Automatic Fill and Control Water Level

installed it in water tank for a water fountain in my backyard. Worked fine

These worked great for our purposes. We needed to replace the float in a chicken waterer and these fit the bill.

Works perfectly in my water feature to keep the water at a prescribed level above the recirculating pump. Screws into a female 1/2" NPT fitting and the nut and washer crank down to keep it tight. It did leak around the threads, but a couple of loops of plumber's tape around the treads fixed that. specifications say 60 psi. My supply might be 70, but this works. One confusion on the title and in the description is the phrase "3/4 inch" which has nothing to do with this device. I almost didn't order it because I thought the pipe thread might be 3/4", but the pictures showed all the right dimensions.

Work great

I'm using 1/2 drip line with 30psi drip to fill my watering bucket. The valve never fully shuts.

I use these as auto levelers for my koi pond. They don’t “flow” water. It’s more of a gentle spray, which I like; I think it makes it much easier to manage too and less likely to break.

Good price for 2 of them. Last one I ordered lasted over 10 years. They get clogged up with rust in the piping over time

Great price

These worked well, I use them for hydroponics, to set the level for Kratky system. Note the float valve should be in an auxillary bucket or resovoir to the buckets with plants; otherwise plant growth will interfere with the valve.

Very happy

Merveilleux le bonheur... manque jamais d'eau et toujours fraîche wow liberté facile à installé

The one unit tested wouldn't fully shut off

J'ai installé cette valve sur un réservoir d'eau alimentant une pompe et un chauffe eau instantané. Efficace et très facile à installé. La valve ferme l'arrivée dès que le réservoir est rempli au niveau désiré.