Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800222 Tool Kit, LFS-113 Price on request 811-0917-01-R Replacement Screws for GilAir Plus, Pk of 25 (4-40 Price on request KB-1-10 Kynar Bag 1.0L Pack of 10 Price on request