Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171] Hunting & Fishing | Tackle Storage Color: Black/Grey

Color: Black/Grey

Monitors two (2) separate areas simultaneously

Anti-airlock feature allows pump to clear trapped air in rough water or when boat is anchored

Cartridge Combo

Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171] Hunting & Fishing | Tackle Storage Color: Black/GreySeries 40 Ball Bearing Block Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Applications: Typically used for halyards at the mast base. Materials: Acetal ball