Aluminum ball valves provide a positive shutoff. Full flow 2.5" (64mm) waterway provides maximum flow with minimal loss. Multi-turn knob meets slow close requirements, prevents water hammer. Includes valve position indicator. Rugged lightweight aluminium alloy casting with durable powder coat finish inside and out, hard coat anodized couplings. 2.5" (64mm) NH female swivel rocker lug inlet coupling is standard.