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Ronstan Series 20 Single Loop Top Becket Block

Cat.No:  4838 Sup. No:  RF20111

Availability: In stock

RRP: $17.71

our price $15.75
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  • Low friction
  • High static and dynamic load capacity
  • Lightweight


  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls


  • Sheave Diam.: 20 mm
  • Max. Rope Diam.: 6 mm
  • Max. Wire Diam.: Not Suitable
  • Pin Diam: Not Suitable
  • Max. Working Load: 250 kg
  • Breaking Load: 550 kg
  • Weight: 18 g


  • Torlon ball bearings
  • Alloy sheave
  • Grade 316 stainless steel load strap and head fitting

Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.