The Ronstan Series 30 Double Utility Block is a lightweight, durable sailing component designed for reliable performance with minimal maintenance. Built with stainless steel cheeks and UV-stabilized Acetal sheaves, this block is suitable for a range of line control systems on both dinghies and larger yachts.
- Construction: Grade 316 stainless steel cheeks and Acetal sheaves.
- Design: Hollow rivets accommodate fixing screws, shackles, or can function as a becket for increased purchase.
- Applications: Ideal for vang, cunningham, and trapeze retriever systems on dinghies, or leech line tackles and bunk adjusters on larger yachts.
- Maintenance: Designed for a long service life with virtually no maintenance required.
Product facts
- CT SKU
- CT-115777
- Model / MPN
- RF417
- UPC / GTIN
- 9316800018147
- Package dimensions
- 1" X 2" X 3"
- Package weight
- 0.1 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
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Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
