Camelbak Combo: Gas Mask Conversion Kit AND Camelbak Type-A Adapter
CamelBak 90522 Type M HydroLink Gas Mask Adapter: 14 Items | Property Room
NBC CBRN CAMELBAK GAS MASK BITE VALVE KIT
Camelbak Chem-Bio Hydration Reservoir System. Pictured with Standard Bite Valve, Type M (MSA), Type A (Avon), and Type S (Scott) Gas Mask Drinking Tube Adapters. : r/gasmasks
NBC
CamelBak Type A Hydrolink Gas Mask Adapter - Outdoors
Amazon.com : Source Tactical Universal Tube Adapter for Refilling your Hydration System on the Move (Olive) : Source Uta : Sports & Outdoors