


Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174Series 20 Lead Block Single Pivoting Sheave Features: 180 degree pivoting sheave Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Applications: Pivoting version suits controls that need to be trimmed from either side of the boat. Materials: Grade 316 stainless steel
Quick Dispatch:
Your Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Trusted dependable Amazon
Color: Striped Black, Size: XX-Large
Great quality product. Delivered on time
Thank you
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Good Fit
Color: All White, Size: Large
Good fit.
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Reviewed in the United States on May 28, 2026
★★★★★ 3
The neck view
Color: All Black, Size: Large
The neck portion is higher than expected
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Reviewed in the United States on May 19, 2026
★★★★★ 5
nice looking & comfortable
Color: All White, Size: X-Large
almost immediate delivery & a great value for the money & quite comfortable too.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Buen producto
Excelente material
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Reviewed in the United States on January 18, 2026