Used for controlling water levels in a reservoir, Float body is ABS plastic with food grade neoprene gaskets and seals, It contains no metal parts, Can be mounted by drilling a 5/8"" hole about 1"" above the desired water level, Water level adjustments can be made in a range of about + or - 1 inch, This valve can handle full city water pressures up to 90 psi, SKU: RPS13571