Dial Plastic 1/4 Float 4120

Just started using it. So far, much much better than the two other main types of floats on the market. Much easier to adjust. Finally, the industry came up with a new design.

Stick with traditional float valves. This one has a good design in theory, but it causes the feed line to shake, especially at high flow rates, and it whistles like a nightmare when the reservoir is nearly full. More than 10 years of maintaining swamp coolers for myself and my family and I've never experienced something like this before - just get a normal float valve.

loved it