3L Camelbak CBRN Hydration Chem Bio Reservoir Type N System & Cleaning 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
CamelBak Type-M Mask Adapter – KommandoStore
CBRN Type M Hydration System - Source Tactical Gear