2 1/2 inch hole size, straight wall fitting with nut. Colors available are white, bone, grey. Body not shown, but available in 1 1/2 inch air and water only, sold below. Long wall fitting typically used for wooden tub set ups. Sold as threaded wall fitting, gasket, nut, eyeball, and retainer ring. Backside of wall fitting accepts 1.5 inch pvc slip/glue.