How the Automatic Sensing pumps work -The “S” series Automatic sensing RULE bilge pumps work on the principle of impeller resistance

Durable polyester shell fabric

Exceptionally high working loads

or with a duralumin ring FrD

Ultra-Versatile - perfect for any sunny day action - sailing

Ronstan Series 15 Ball Bearing Double Block with Becket and Loop Top RF15212 bf24 How the Automatic Sensing pumpsFEATURES Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Sheave 15 mm Max. Rope 5 mm Max. Cable mm Pin mm M. W. L. 240 kg B. L. 700 kg Weight 24 g