STAINLESS STEEL 1 x 11 Tank Tee Kit + UNION + VALVES Installation Water Well Pressure Tank with SQUARE D 30/50 M4 low yield pressure switch 1x11 STAINLESS STEEL Tank Tee with UNION 30/50 M4 Square D Switch - Low Pressure Cut-Off Switch; Stainless Steel Pressure Gauge 1" Stainless Steel Ball Valve; 1" Stainless Steel Check Valve 1/2" Stainless Steel Boiler Drain; 1/2" Stainless Steel Pressure Relief Valve 1/4"x3" Stainless Steel Nipple; Roll of Teflon Tape