Pentair ETi 250 High Altitude Conversion Kit 4,500-10,000Ft | 462057 Heat Pumps you will need the correct

you will need the correct 1-1/2" flange gasket instead

Connection: 1-1/2 inch vacuum hose swivel connection included

000-gallon (12-month) cell applications

Simple drop-in installation with no plumbing required

Pentair ETi 250 High Altitude Conversion Kit 4,500-10,000Ft | 462057 Heat Pumps you will need the correctPentair ETi 250 High Altitude Conversion Kit 4,50010,000 Ft 462057 The Pentair ETi 250 High Altitude Conversion Kit (462057) is a specialized accessory designed for the Pentair ETi 250 Condensing Gas Heater. This kit adjusts the combustion settings so the heater can operate safely and efficiently at high elevations between approximately 4,500 ft and 10,000 ft above sea level. At higher altitudes, thinner air affects combustion and burner performance,