Barton Marine Size 0 Ball Bearing Blocks - 20mm Life Lines and the supplied waterproof plug

and the supplied waterproof plug and socket are rated IP67

Can I change chain size with a new gypsy

No run-off contamination

and no risk of motor burn out

Barton Marine Size 0 Ball Bearing Blocks - 20mm Life Lines and the supplied waterproof plugThe 20mm sheave Size 0 block range is available in plain and ball bearing assembly. Engineered for dinghy sailors and small craft enthusiasts, the series defines high strength, keen performance and lightweight design for racing and day boats. Also ideal for lead blocks, flag pennants and small line systems on larger yachts. Triple blocks come with a cam cleat option, there are used with double or triple blocks for multi purchase downhauls and kicking