Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417] Cartography Replace all impellers at least

Replace all impellers at least once every year

USB power port and GFCI convenience outlets

The RV-200 lets you easily identify structures and locate fish with the life-like clarity of RealVision 3D™ sonar

Shoot-thru-hull mount

Listen-Back: No

Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417] Cartography Replace all impellers at leastSeries 30 Utility Block Double, Tube Rivet Features: Lightweight durable construction Economical Maintenance free Product Information: Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase. Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts