Quickly and easily lay down an even coat of finish with this backpack system. Ergonomic backpack holds up to 1 1/2 gallons, enough to finish a 3,000 sq. ft. area. Backpack features a 3-inch opening for easy refilling. Vented back channels as well as adjustable chest and waist straps improve comfort while allowing you to evenly distribute weight. Clean Connect hose provides neat and clean, spill-free finish delivery. Conveniently located handle trigger enables at-touch-of-a-button dispensing. No-slip tip on mop handle prevents sliding down walls. Includes backpack, floor-finish bladder, trigger handle, 18-inch Quick-Connect mop frame, Gloss Pro finish pad, hose and documentation.