Barton Marine Size 3 45mm Plain Bearing Pulley Block Double w/Swivel [N03230] Treatzall Can - A positive busbar

Can - A positive busbar with a space for a main system fuse and a negative busbar with a shunt for battery monitoring

and the Johnston and Palmyra Atolls

UPC: 682500441356

5-inch bump board and line slot to improve measurement accuracy

Barton Marine Size 3 45mm Plain Bearing Pulley Block Double w/Swivel [N03230] Treatzall Can - A positive busbarSize 3 45mm Plain Bearing Pulley Block Double with Swivel The size 3 Barton plain bearing blocks have a 45mm (1 3 4" sheave size 3 block range that incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fiberglass filled nylon and Acetal sheaves to maximize their strength while keeping weight to a minimum. Suitable for use as mainsheet, vangs, lead blocks, or wherever a powerful and compact purchase system