In Stock

Ronstan 20 mm Double In Line Block

No reviews yet Write a Review
Ships in 10-14 Days
Current Stock:
Double Block
20 mm

Frequently Bought Together:

Ronstan 20 mm Double In Line Block
Inc. Tax
Ex. Tax


Ronstan 20 mm ball bearing block with precision moulded Acetal sheaves running on stainless steel ball bearings provide high performance & low friction. This unique double in line block (two single blocks in one unit) is ideal for dinghy control lines, dinghy vangs, cunninghams, and traveller control lines. Made from grade 316 stainless steel with impact and UV resistant, fibre reinforced Nylon cheeks.

  • Stainless Steel ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 Stainless Steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks
  • M.W.L. - 550 lb 
  • B.L. - 1210 lb 
  • Weight - 1 oz

Product Reviews

Shipping & Returns

Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $99. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.

See our Shipping Page for more information (and exceptions).

Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.

See our Returns Page for more information.

Subscribe To Our Newsletter

Sign up for our newsletter to receive exclusive discounts, new product announcements, and upcoming sales.