Ronstan Utility Block, Series 50 & 60 - Single, Swivel Shackle Head flap Hose sizes are internal hose

Hose sizes are internal hose size

can be adjusted vertically to lift or drop engine height

Shaft stem diameter - 16mm

available to suit 1" or 1 1/8" diameter prop shafts

- Maximum head height of 4 metres ensures effective water flow

Ronstan Utility Block, Series 50 & 60 - Single, Swivel Shackle Head flap Hose sizes are internal hoseAll purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing Features: Exceptionally high working loads Low maintenance, long service life Self lubricating Acetal