The Harlequin single skin oil tanks are rotationally moulded from UV stabilized premium grade, oil resistant medium density polyethylene. The tanks come with the Apollo watchman ultrasonic oil level monitor. Single Skin Plastic Oil Tank are suitable for the storage of home heating oil at above ground oil storage tank installations at single family dwellings, subject to prevailing statutory requirements and a recognised Risk Assessment being undertaken in accordance with statutory requirements and the requirements of OFTEC Technical Instruction Book 3.