Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC0237 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 615-0908-05-R Carrying Case, Hard Side, for GilAir Plus 3-pack Price on request 810-0902-01-R Data Logging Pump Only (No Dock) Price on request GF25080GRG Filter, MCE, 0.8µm 25mm, PCM, with Green Grid Lin Price on request