Hollis DC7 first stage - Practical angle on ports for hose routing - Frost-proof and overbalanced - 2hp ports and 4lp ports - DIN 300bar coupling
Hollis LX200 second stage Balanced second stage with venturi control and breathing resistance regulation. The top model in Hollis' range of breathing valves. The metal components are treated with "PVD Coating" instead of traditional nickel plating. This provides better durability and protection. Supplied with hose.
