Waterway 6" Old Style Leaf Trap Assembly [w Cam & Ramp Lid] [1.5" FPT X 1.5" Buttress X 2" Union Flange] (310 6500) chemicalfeeders and mechanical stress without compromising and mechanical stress without compromising performance The Hydro Quip Grasslin 24 hour replacement timer with override is designed for compatible 230 volt control applications where dependable daily scheduling and manual override are needed in a panel mounted format It is a practical replacement when the goal is to restore the original design rather than adapt a mismatched newer part The Waterway 310 6500 leaf trap assembly is a 6 inch old style design with a cam and ramp lid and a 1