Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head [RF40300] Brand_Marine Business Anti-Clog Technology: Includes a rear

Anti-Clog Technology: Includes a rear anti-clog system and an easy-access knob for clearing blockages

and plan more accurately with Sailing Time arrival estimates that factor in the realities of travel by wind

Both 1/2" main 3/8" return and 1" main 3/4" return options available

UPC: 723193260081

Extend your view from the bow of your boat out to 24 nautical miles with pulse-compression radar technology that not only delivers a powerful mix of short and long-range detection

Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head [RF40300] Brand_Marine Business Anti-Clog Technology: Includes a rearSeries 40 Ball Bearing Block Triple Swivel Head Features: Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Features a swivel shackle head for full 360 rotation 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: Mainsheet Halyard Vang Spinnaker control lines