Use: this PTC part is used for heating air or solid. the PTC meterial has a characteristic that it is constant temperature on the . PTC Insulative corrugated heater(PTC Air heater insulator,PTC Heater for warm air-conditioner) is a kind of large power Non--Electrified PTC heater with wind blowing.PTC elements is fixed in aluminium tube and keep insulated with the aluminium tube. Advantage: Safety. Heat up quickly, long service life. self-control temperature. small sound Application: Equipment, Electric Heater, appliance, machine, Weight: 0.34612575134 pounds, Manufacturer: Tuidzljd