it takes about 1/3 of the weight to protect the same surface

For propeller shaft: 3/4 "

Length: 220mm/8

78 kg / dm³

Fits most water heaters with 3/4 "(R20) thread Find the correct sacrificial anode for the NIBE water heater in the table below:

flex o fold zinkanod dia 69 5mm hal 8 5 15 Total length_215mm/8.46in it takes about 1/3 ofFlex o Fold Prop Rff205 For use in salt water Fits all Flex o fold 2 blade propellers, 3 blade propellers and 4 blade propellers up to 23 Zinc anodes are mainly used in seawater and brackish water. Zinc anodes can be used in brackish water if the resistivity is not too high (approx. 1. 5 m). Zinc is more chemically stable than Aluminum and is therefore preferred by many in weakly brackish water environments. The term "zinc" has become synonymous with