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400 Litre Underground Water Tank

Product Code: ET-ECO400V1UND
£276.71 ex. VAT
£332.05 inc. VAT
UK Mainland Delivery: £23.95 + VAT
(Exclusions apply - click for more details)
Lead Time: 5-7 working days

Available Options (Prices ex. VAT):

Description Specification Technical Datasheets (1) Related Products (1)

This 400 litre underground water tank features a narrow slim line design making it the ideal choice for smaller gardens or other areas tight on space.

The tank is manufactured in the UK from tough and durable high density polyethylene (HDPE) and is available in two versions; as a standard tank or as a potable version suitable for storing drinking water.

The tank has two 4” connections for connecting underground pipe work and comes with a 12” lid which gives enough space to install a submersible pump. A 1” BSP outlet is also pre-moulded into the tank. 

Pump Kit

The optional JS Pump RS-150 or RS-250 pump kit includes everything you need to pump water from your underground tank. 

The kit includes:

  • JS RS-150 or RS-250 submersible pump
  • Polypropylene pipe
  • Pipe elbow
  • Cam lever lock

The RS is a range of stainless steel submersible drainage pumps from JS Pump and they are designed for continuous duty applications and can be used with clean or dirty water.

Pump features:

  • Stainless steel pump body with cast iron motor cover
  • Stainless steel handle with rubber grip
  • Stainless steel strainer
  • Fibre reinforced impeller
  • Supplied with 10 metres of power cable
  JS Pump RS-150 JS Pump RS-250
Max. Flowrate 120 L/min 180 L/min
Max. Head 7 metres 9 metres
Power 0.15 kW 0.25 kW
Voltage 230v 230v
Speed 2900 RPM 2900 RPM
Discharge Outlet Size 1 1/4" 1 1/2"
Power Cable Length 10m 10m
Weight 12 kg 13 kg
Dimensions H x W x L 370 x 167 x 167mm 370 x 167 x 167mm

Important Delivery Information

Please note the delivery price quoted is for delivery to an address in England or Wales. Deliveries to Scotland, Northern Ireland and offshore islands may incur a surcharge. Please contact us for additional delivery charges to any of these locations.


Tank Specifications
Capacity - Litres 400
Construction Material Polyethylene
Length - mm 1240
Height - mm 1500
Width - mm 345
Weight (kg) 35
Internal Dimensions
Internal Neck Diameter - mm 285
Direct Water Tanks - Trading name of Kingfisher Direct Ltd © 2012 - 2018.