Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC0237 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800783-3 Diagnostic Panel with Stand, Hi/Lo (2-50cc, 20-200 Price on request 811-1004-02 PM-10 Impactor Kit, Replacement for Models 810-100 Price on request 811-9917-01 Go-Cal Replacent Filter Price on request