Ronstan RF573 25mm Series 25 Utility Block – Single swivel shackle head pulley with stainless steel cheeks and acetal sheave Ronstan RF573 25mm Series 25 Utility Block – Single swivel shackle head pulley with stainless steel cheeks and acetal sheave
Ronstan RF573 25mm Series 25 Utility Block – Single swivel shackle head pulley with stainless steel cheeks and acetal sheave

Ronstan

Ronstan RF573 – 25mm Series 25 Utility Block with Swivel Shackle Head

$29.90
Tax included.

The Ronstan RF573 Series 25 Utility Block is a lightweight, durable, and economical solution for various sailing applications. Featuring a 25mm sheave, stainless steel cheeks, and UV-stabilised acetal sheaves, it ensures long service life with virtually no maintenance required.

Ideal for vang, cunningham, and trapeze retriever systems on dinghies, as well as leech line tackles and bunk adjusters on larger yachts. The swivel shackle head design allows for easy attachment and alignment.

Specifications:

  • Sheave Diameter: 25mm (1")

  • Maximum Rope Diameter: 6mm (1/4")

  • Pin Diameter: 4mm (5/32")

  • Maximum Working Load (MWL): 150kg (330lbs)

  • Breaking Load (BL): 300kg (660lbs)

  • Weight: 20g (0.7oz)