Ronstan Utility Block, Series 15 & 20 - Double, Tube Rivet ronstan swivelling cleat unit 28mm ball bearing sheave - small c-cleat fairlead the amount of current allowed

the amount of current allowed to flow through it to ground changes and the meter deflects

self lubricating Nylatron® sheave

• The body and ports can be positioned in multiple orientations for maximum flexibility of installation

Monohulls to 29m (95ft) or sail area 168 m2 (1808 ft2)

Acetal & aluminium sheave options

Ronstan Utility Block, Series 15 & 20 - Double, Tube Rivet ronstan swivelling cleat unit 28mm ball bearing sheave - small c-cleat fairlead the amount of current allowedStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts Materials: U. V. stabilised Acetal sheaves Grade 316