Caravan cushion 20mm

Prevents the drain from freezing again. The caravan tail is a pipe with a built-in 12V element and consumes about 20W. It is placed directly in the drain of caravans and motorhomes. It is self-regulating, but it is recommended to be installed via a switch and fuse. There is no difference between positive and negative. The pipe has an external diameter of 20 mm.