JR Products 37525 Polar White Slide-Out Gravity Water Fill Combo hose connections for 1-1/4" and 1-3/8" O-ring protected to reduce spills or siphoning Tank vent for easier filling Can be secured with a small padlock Cutout Dim: 2-1/2, Outside Dim: 3-1/2 x 3-1/2", Spout Depth: 3-5/8