Thomas R

Installation in a carbon mast for the main halyard, because the pure carbon fiber will eventually damage the halyard sheath when manually hoisting the mainsail on the mast. The installation width for the 10mm version is 14mm, the length 80mm if the hole at the top of the mast is rectangular; for a curved hole, the length will be correspondingly greater. And only 10mm will actually fit through the slot. If you have an eye splice at the end of the halyard, you might not be able to thread it through...

Significantly brighter than the (15-year-old) installed LED lights. Easy installation thanks to the clamp mechanism and plug. I just reordered 5 more.

According to the Hengst compatibility list, 11 is a replacement for the original Nanni oil filter on the N3.21. The diameter of the connection fits exactly, the height is slightly smaller, and the filter wrench has to be tightened further (so it has a smaller diameter at the top end). But it works perfectly.

Works great, the 15-year-old hull is sparkling white again... The effect starts after just a few minutes, and I didn't have the problem of the product drying out before it even started working. The best €14.95 I've ever invested in the boat ;-)