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ONHAND and READY TO SHIP 😁 HARDWARE ITEMS SUPPLIER & DISTRIBUTOR SQUARE D Pressure Switch Heavy Duty Available Variants: ✔️ Heavy Duty - Square D Original HD or Powerhouse ✔️ Class-A / Ordinary - Squared D Class A ✔️ Class: 9013 ✔️ Type: FSG-2 ✔️ Series B On 20 Off 40 ✔️ High quality materials for strong strength and long durability ✔️ Use for Automatic on and off of Water Pump ✔️ Control switch for perfect pressure ✔️ Cut-in: turn range nut, down for higher cut-in pressure ✔️ Cut-out: turn differential nut, down for higher cut-out pressure ✔️ Pressure Connection: 1/4 BSP BS 2779 (FSG-2) - 1/4 BS 21 Taper (FSG-9) ✔️ Note: If switch turns rapidly on and off (telegraphs) check air volume control. ✔️ For smooth operation tank must have ample air cushion.