Brand: Ronstan
Ronstan Series 50 All Purpose Double Block, RF51200
Ronstan Series 50 All Purpose Double Block, RF51200
4 available
About this product
The Ronstan Series 50 All Purpose Double Block is a versatile solution for sheets, halyards, and control line applications on cruising and racing sailboats. Designed for durability, this block features a self-lubricating Acetal polymer sheave on polished stainless steel races, providing reliable performance under both dynamic and high static loads.
Key Features:
- Swivel shackle head allows for 360-degree rotation
- Slotted pin shackle design helps prevent fouled lines
- Grade 316 stainless steel load strap for structural integrity
- Impact and UV-resistant, fiber-reinforced Nylon cheeks
- Suitable for mainsheet, halyard, vang, and spinnaker control lines on boats up to 33' (10m)
Technical Specifications:
- Sheave Diameter: 2" (50mm)
- Max Rope Diameter: 1/2" (12mm)
- Pin Diameter: 1/4" (6mm)
- Maximum Working Load: 2200 lbs (1000 kg)
- Breaking Load: 4410 lbs (2000 kg)
- Weight: 9.0 oz (255 g)
- Model Number: RF51200
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-106472
- Model / MPN
- RF51200
- UPC / GTIN
- 9316800241231
- Package dimensions (H × W × L)
- 2" X 3" X 5"
- Package weight
- 0.57 lb
Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
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.
