Fangrui Product Details Adjustable Arm: The Float Valve Has An Adjustable Arm That Can Be Adjusted Over 180 Degrees To Adapt To Different Water Levels. No Power Source Or Pump Required, Hand Tight For Leak-free Operation. High-quality Material: The Mini Float Valve Is , With Adjustable Arm, Made Of High-quality Plastic And Brass, More Stable And Not Rust, Has Good Water Inlet Control Function, Bring You A Good Experience. Dimensions: The Float Valve Uses 1/2 Npt Pipe Threads; This Is Common In The Plumbing World And Has Thread Sizes Of Approximately 1/2 Inch With Standard Washers To Leaks. The Applicability Exceeds That Of Traditional Metal Float Valves. Wide Range Of Applications: Tank Float Valves Are Suitable For Ponds, Chicken Coops, Livestock Ponds, Aquariums, Aquaponics, Aquaculture, And Hydroponic Reservoirs, And Are More Adaptable Than Traditional Metal Float Valves. Packing Quantity: Water Tank Float Valves, Designed To Reduce The Time Of Water Filling And Checking The Water Tank, Sealing Effect And High Pressure; Adop