![Ronstan Series 30 Utility Block - Double, Loop Top [RF81]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ronstan-series-30-utility-block-double-loop-top-rf81.webp)
Series 30 Utility Block- Double, Loop Top
Features:
- Lightweight durable construction
- Economical
- Maintenance free
Product Information:
Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.
Applications:
- Vang, cunningham and trapeze retriever systems on dinghies
- Leech line tackles, bunk adjusters etc on larger yachts
Materials:
- U.V. stabilized Acetal sheaves
- Grade 316 stainless steel cheeks
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