Jandy BWVL-MPV-80 2" Side Mount Multi-Port Valve with Unions For DEV48/60 JS60-SM or JS100-SM are designed for versatility with 6 different positions. Multiport Valves are constructed of molded ABS for unsurpassed water clarity choose Jandy Diatomaceous Earth filters. Jandy DEV filters give you extra large capacity for extended cleaning cycles. The easy-grip tank handles make installation and cleaning easy. One-of-a-kind pressure gauge/air release valve with built-in Clean/Dirty indicator accurately tells you when the filter requires cleaning. We offer a choice of 48 and 60 square foot capacity models.