If your boat leaves the water every year for storage, antifouling will last for an average of two boating seasons.
If this is the situation then 1 layer of antifouling is enough to make your boat last another two seasons. If you do not take the boat out of the water and have it treated for example every 3 years then this price will not apply.
As the boat must first be treated with (a few layers of) aluminum primer and a hi-build treatment. We will be happy to make you an offer without any obligation.