1,400 Litre Double Walled Underground Oil Tank (Harlequin)

A new addition to Harlequin’s Underground Oil Tank range, the 1400L Double Walled Underground Tank fully complies with all existing best practice guidlines.

Length: 2000 mm

Width: 1250 mm

Height: 2010 mm

Weight: 220 kg

Shipping: £215 Mainland UK, Terms & Conditions apply.  There are extra transport charged incurred if the delivery address is in Scotland, Ireland or the London area.  Please contact us for a shipping quote.



1400 Litre Underground Oil Tank (300 gallons)


A pioneering new addition to Harlequin’s Underground Oil Tank range, the 1400 Double Walled Underground Oil Tank fully complies with all existing best practice guidelines.

Underground fuel oil storage is a popular choice for small gardens and sensitive landscaping. Double walled design is complete with an interstitial leak detection monitor and fully complies with PPG27 and BS5410.

The 1400 litre Underground Oil Tank features the following:

  • 32mm drilled and plugged gauge hole
  • 2″ fill point
  • Offtake (Anti siphon valve & filter)
  • Contents Gauge
  • Overfill Prevention Valve
  • Tiger Loop
  • Interstitial Leak Detection Monitor
  • Inner tank moulded in one piece from durable medium density polyethylene material
  • GRP outer skin
  • Lockable hinged access lid with brick effect surround
  • Moulded-in lifting eyes for ease of handling
  • Ecoflex top offtake fitting (3/8” BSP(F) connection)

All of which are easily accessed via the lockable lid.

Warranty: 10 Years

Certification & Regulatory Compliance:

This 1400 Litre underground oil tank meets all requirements meets and exceeds the requirements stated in the following guidelines and regulations:

Control of Pollution (Oil Storage)(England) Regulations (2001)


Applications and installation requirements:

Suitable for domestic and commercial use, in below ground installations.

Fuel tanks should be installed by a competent and qualified technician.

These tanks are HVO compatible.

Installation instructions are provided with the tank and should be adhered to accurately.


£215 delivery to mainland UK. Please contact us to obtain a quote for deliveries to Channel Islands, Scottish Isles and Northern Ireland. Delivery by curtain side HGV. Delivery terms and conditions apply.

Due to recent transport updates, there is extra carriage charge if the delivery address is in London, within the M25. Please use the link Here  to view the post codes affected. Then please give us a call for a shipping quote.

It is the customer’s responsibility to ensure that adequate access and turning space is provided for a flatbed vehicle and that appropriate offloading facilities and equipment is provided. Please contact us on 01953 665940 for Hiab and other special delivery requests and we will be happy to assist.

Contact us for a competitive installation quote for this tank model.

All Tanks-UK installers are fully OFTEC licensed.

Lead Time: The lead time on waste oil tanks is estimated at 2 weeks.  This will be confirmed at the point of ordering.

Additional information

Weight 220 kg
Dimensions 2000 × 1250 × 2010 cm


Tank Size

1,100 – 1500 Litres


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