High density polyethylene tanks, suitable for acids and fuels, with standard inspection hatch without indicator. The hatch comes with cap, vent, float, 3/8” hose connection for air vent, and is designed to mount an electrical or mechanical level sensor, 1/4” hose connection for a second fuel float for a two engine or diesel for fixed installations. Capacity 42lt. Dimensions: Height 300mm x Width 350mm x length 650 mm. Weight 5.3kg. CE ISO 21487 certified. A 28cm sensor is recommended.