Harlequin have introduced a 1400 Super Slimline (SSL) as part of their Diamond Oil Tanks range. The new 1400 SSL is fully bunded and best suited for awkward installations where space is at a premium. It has been tested independently and approved to EN13341.

Key Benefits:

  • These tanks offer a smaller footprint than standard oil tanks but do not compromise on capacity.
  • They can easily fit through standard doorways and garden gates.
  • They can be carried into the garden without the need to remove fence panels or lift them over hedges.
  • Comes complete with useful lifting handles, making installation easier.
  • Comes complete with a heavy duty wraparound lid, reducing the likelihood of water ingress and increasing the security of the tank.
  • Complete with a 10-year manufacturer’s warranty backed by a reputable long established tank manufacturer*


  • Length: 2,110mm
  • Width: 640mm
  • Height: 1,670mm
  • Capacity: 1,435mm
  • Weight: 200kg
  • (Please Note: All tank capacities are brimful)