Give drain systems the anti-corrosion protection of stainless steel without the costly price tag by installing the heavy-duty DrainKing Waste Valve from Fisher Manufacturing Co. Mfg., of Tulare, Calif. It features an advanced ball-valve design that incorporates stainless steel only where it counts for high-end performance and true value. While conventional drains deteriorate after prolonged exposure to today’s harsh cleaning chemicals, the valve’s durable stainless steel construction resists their corrosive effects.