3M™ Scott™ ProPak-f SCBA 2027184, with Split Demand Valve Coupling (SDC), 1 ea/Case The 3M™ Scott™ ProPak-f is a Type 2 open-circuit self-contained compressed-air breathing apparatus with padded upper and lower harness. Designed for use by the professional SCBA users, fire service or as a firefighting set in the oil and gas or industrial markets Rigid back frame construction with padded upper and lower harness for improved comfort Tempest demand valve features low breathing resistance, first-breath automatic activation and hands-free bypass Choice of 3M™ Scott™ Vision 3 or 3M™ Scott™ Promask PP face masks Can be used with 3M™ Scott™ EPIC 3 voice projection unit and communications connection, which increases intelligibility with Promask, Vision and AV-3000 HT face masks