Ronstan RF50100 – 50mm Ball Bearing Single Pulley with Universal HeadThe Ronstan RF50100 50mm Single Pulley with Universal Head delivers superior strength, low friction performance, and versatile mounting for a wide range of sailing applications. Featuring a ball bearing acetal sheave and a fully articulating universal head, this pulley offers smooth rope handling under high load conditions. Built for durability and efficiency, the RF50100 is perfect for use on keelboats and larger dinghies where high working loads and

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Upgrade your rigging with the Harken 40 mm Carbo Air Swivel Block (model 2636) — a compact powerhouse engineered for maximum strength with minimal weight

Easy surface-mount installation

Fast push-button anchoring

ideal for routing lines internally on dinghies

Compatibility: Dickinson diesel stoves and heaters (6” burner pot)

and integrated self-tailer for effortless single-handed operation

Easy to install inline with your fuel hose

and solid-state overload reset—no fuses

⭐ Key Features

Use: Interior & exterior marine applications

Engineered with advanced epoxy technology