Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100] Marine Plumbing & Ventilation | Transfer Pumps One piece vitreous china bowl

One piece vitreous china bowl

Proportional shift delays

High-speed pulse rate transmission of 5000 times per minute for enhanced shallow water detection

Controls mold and mildew

Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100] Marine Plumbing & Ventilation | Transfer Pumps One piece vitreous china bowlSeries 50 All Purpose Block Single Universal Head All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock universal head can be fixed in either of