Ronstan Series 75 Core Block - Single, Becket, Universal Head sealant Requires just 10 -20 strokes

Requires just 10 -20 strokes to create a powerfull vacuum

Low maintenance - non-clogging joker valves and no filter required

Includes Cassell Stainless Steel Exhaust Flanges I

Includes Quick Release Cable Clamp

Ronstan Series 75 Core Block - Single, Becket, Universal Head sealant Requires just 10 -20 strokesCore Blocks are a true all round solution. A tuned 2 stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for