The FIF series polysulfone filters are 10-32 inch female UNF by 10-32 inch female UNF filters with a 316 stainless steel screen. Available in 5, 25, 43, or 73-micron screens. Minimum pressure 125 psi. The operating temperature is 40 ºF to 120 ºF. These filters are disposable and have a low-pressure drop.