Filter, Tissue Quartz, (99.90% retention of 0.3µm Back Catalog number: GF37TQ Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFPC825 Filter, 25mm, 0.8µm, Polycarbonate, Plain White, 1 Price on request 910-0910-EU-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request 800450 Soap Solution, Flow Cell (8 oz.), Gilibrator/Gilib Price on request