![Harken 57mm Quad Block Swivel, Center Becket [HSB380] Brand_SEM Precision Control - Ronstan Batlestick](https://cdn.shopify.com/s/files/1/0350/0497/3196/files/88765XL.jpg?v=1682780503)
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Precision Control - Ronstan Batlestick tiller extensions provide the highest level of control
Medium—CHIRPS from 80 kHz to 130 kHz
Thetford’s New AquaBio is formulated and tested safe for all RV toilets
Providing numbers where they're needed
Always on course with Mastervolt
Harken 57mm Quad Block Swivel, Center Becket [HSB380] Brand_SEM Precision Control - Ronstan Batlestick57mm 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
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