Filter, Support Pads, Cellulosic, 37mm, 40.0µm, 10 Back Catalog number: GPG37100 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended C-B100M BioVOC Disposable Cardboard Mouthpieces, pk 100 Price on request 911-0301-NO-R Single Unit Charger w/ Power Adapter, USB, LFS-11 Price on request 201050-100 Filter, Replacement (Packg of 100), GilAir-3/GilAi Price on request