SF Filter SPH18070 Replacement Spin-On Filter - FilterFinder
SF-FILTER SL81417 Air Filter Cross Reference
CROSS 1A9021 Filter Replacement Cartridge, Extra FINE Paper, 3/4 in NPTF, Spin ON, 10 Micron, Series SF 1-10, 200 PSI, Hydraulic: Amazon.com: Industrial & Scientific