Air Boss & Restrictor Kit, GilAir-3/GilAir-5 and B Back Catalog number: 800320-1 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended C-B100M BioVOC Disposable Cardboard Mouthpieces, pk 100 Price on request 800511 Carrying Case ,Hard-Side (17.5" x 13" x 7"), BDX-I Price on request GCO37050 Housing, 37mm, 3Pc, 50/Box Price on request