The SL-39 is a large model of the water caddies, holding up to 39 gallons of water. It features a vent in the fill cap on top of the caddy. It comes standard with 2 shut-off valves, one for the hose the other for filling your bucket & a strap/hardware kit. 14" (sides) x 14 1/2" (facing side) x 72" H. 3 year warranty