Quick Connect Filter, For Use With Mfr. No. US-2, Reduces Atrazine, Cyst, Lead, Lindane, Sediment, Micron Rating 0.5 micron, Flow Rate 0.5 gpm, Diameter 3 in, Overall Height 10 5/8 in, Service Life 500 gal, Filter Media Carbon, Maximum Temperature 100 Degrees F, Standards NSF 42, NSF 53, Compatible Mfr. Model Number US-2, Compatible with Grainger Part Number 53CF15, Connection Size 1/2 in, Features Easy Installation, Maximum Pressure 100 psi, Minimum Pressure 30 psi