Universal gasket for mounting A/C's on the roofs of campers and RV's. Simply peel and stick to the underside of the air conditioner. Set air conditioner in place and snug 4 bolts (typically) to compress the gasket. Do not over tighten. Do not caulk add any caulk around the a/c.
Most new air conditioners already come with a gasket. Purchase this gasket when replacing a leaky or worn gasket or when the a/c needs to be removed for work. Never re-use an old gasket.
Fits all air conditioners that use a 14 x 14 roof opening. Extra gasket strips are included to add to the far end of the a/c for leveling.