Product Description Simmons makes lead-free water well supplies, including: foot valves, check valves, frost-proof hydrants, well seals, well points, well caps, pitless adapters, tank tees, pressure switches, pressure gauges, torque arrestors, splicing kits, insert fittings and air volume controls. From the Manufacturer Simmons makes lead-free water well supplies, including: foot valves, check valves, frost-proof hydrants, well seals, well points, well caps, pitless adapters, tank tees, pressure switches, pressure gauges, torque arrestors, splicing kits, insert fittings and air volume controls.