Go-Cal Replacent Battery Pack Back Catalog number: 811-9917-03 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0303-01-R Single Unit Replacement Charger only, USB, LFS-11 Price on request GFG85037MM Filter, Glass Fiber, Binderless, 1.1µm, 37mm, 100/ Price on request 810-0801-01 Gilian 5000 Pump Kit UL ATEX, Pump Only, No Charge Price on request