This easy to install gravity water fill is made of paintable UV-stabilized plastic so that it is fade and impact resistant.  It features an air vent to allow tank pressure equalization during fills.  And it has a barbed fitting on the inside to attach your fill hose using a hose clamp. The bayonet cap has a quick reliable seal.  

Includes three installation screws and putty tape for a fast installation.

Choose from white or black colors. 

Dimensions

• Flange diameter: 4-1/2 inch O.D.
• Cutout: 3-1/2 inch round
• Air vent size: 1/2 inch O.D.
• Interior barbed fitting: 1-3/8" or 1-1/14" fill hose