Hatchlift RV Door Lift Kit for doors from 28" - 32" in height-Medium For Hatch Doors 28"-32" tall. Order Hatchlift Kits based on the HEIGHT of the door Hatchlift Kits include mounting hardware, mounting plate with 3M tape, and high quality gas springs. All Kits include hardware for installing under Slide Out Compartments Easy 30 Minute Installation 12 months WARRANTY