Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended KB-05-10 Kynar Bag 0.5L Pack of 10 Price on request 780-0015-02-R Go-Cal Pro SmartCal adpater, GilAir Plus 9-pin Cab Price on request 910-0910-NO-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request