Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141] Marine Navigation & Instruments | Gauges Heat Exchanger: Yes

Heat Exchanger: Yes

Sacrificial Anode: We use metals that are properly balanced & a composite shaft to ward off galvanic corrosion

The 30" comes complete with a 16" x 24" sewn U

and can tilt downward for easy storage

The traditional CHIRP sonar has a power rating of 600 W and operating frequencies of mid-band CHIRP 80-160 kHz

Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141] Marine Navigation & Instruments | Gauges Heat Exchanger: YesSeries 20 Ball Bearing Block Single, Stand Up Loop Top Features: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Applications: Dinghy control lines Dinghy vangs Cunninghams Traveler controls Materials: Stainless steel ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting