Flow Switch ST-5, 48" Wire/Vertical MT Pacific Bay Equipment Sale! from $70.50 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Flow Switch Temperature: 180°F ST-5 Black, Vertical Mount, 75-4380 PSI Max, 1-8 GPM, 3/8" FPTInlet/Outlet, Contact: 1A-250V(48" Wire Length)