Harken 57mm Quad Block Swivel, Center Becket [HSB380] Sailing | Hardware Tension clamps securely locks the

Tension clamps securely locks the pivoting and telescoping joint

3/4" GHT Male Hose Adapter

An additional external port is using a D-sub 15 pin connector

Operating Voltage: 10 to 30 VDC

Harken 57mm Quad Block Swivel, Center Becket [HSB380] Sailing | Hardware Tension clamps securely locks the57mm Quad Block Swivel, Center Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Features: Sheave (mm) 57 mm Sheave (in) 2 1 4 in Maximum line (mm) 10 mm Maximum line (in) 7 16 in Maximum working load (kg) 1080 kg Maximum working load (lb) 2380 lb