Megaware KeelGuard - 4 - Yellow [21104]KeelGuard 4' Yellow The Original Do It Yourself Keel Protector Protect Your Investment Against Sand, Rocks & Ramps Wear and damage to your boats keel can break down its protective gelcoat finish, allowing water to reach and destroy the fiberglass laminates. Megaware KeelGuard, the powerful abrasion resistant protector, prolongs the life of your boat like nothing else. Megaware KeelGuard Engineering Every aspect of the Megaware KeelGuard has been