High density polyethylene plastic. Complete, with inspection porthole with cap, air-vent terminal and fuel pick-up terminal, and is ready to take a fuel sender and a 1/4 terminal for second pick-up or diesel return. Option: 33 and 43l tanks, LEVEL SENDER S5-200mm - N/Ref: 118155 0-190Ohm - N/Ref: 118199 240-30Ohm. 53l tanks, LEVEL SENDER S5-225mm - N/Ref: 118156 0-190Ohm - N/Ref: 118197 240-30Ohm