Kit-Damper-Diaphragm Std Flow Back Catalog number: 800412 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 360-0135-01 GilAir PlusQuick Start Guide Price on request 360-0049-01 Manual, Gilibrator-2 Flow Monitoring Software Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request