Jabsco Pressure Tank - 8 litre

$ 324.00
Model Number: J21-105
Pressure: Tooltip 50 PSI maximum
Inlet/Outlet size: 18mm 3/4
Size (cm): 33 x 22 x 22cm
Weight (kg): 3.75kg
Liquid to be pumped: Clean Water

This pre-pressurised Jabsco accumulator tank (pressure tank) will give you a smoother water flow, quieter operation, will save your battery power and will extend the life of your pressure pump. A must for every caravan, boat or marine pressurised water pump system!

This listing is for the Jabsco 8 litre accumulator tank.

The quality 8 litre Jabsco accumulator tank will hold a store of pressurised water to reduce unnecessary pump cycling, pulsation and water hammer when installed between the pressure pump and the water tap or outlet. Usually sitting right beside the water pump. It can also be used to moderate the flow to match your Hot Water Service. It can be fitted to new or existing pump system installations. 

Failure of a pressure switch on diaphragm water pumps can usually be attributed to excess pressure in your system. An accumulator tank also known as a pressure tank will accumulate the excess pressure resulting in a smooth hassle free system. 

Some pumps have built in bypass systems and some do not. The job of the bypass is to take care of any excess pressure. If for any reason you do have any of the above setup issues regardless of the pump style we advise adding a pressure tank. If your pump does not have a by-pass you will require an accumulator tank for the best setup.

For Water Pumps Now full range of pressure tanks and accumulator tanks with sizes from 600 ml to 100 litres click here. 

If you are looking for a new pump for your boat or caravan click on APPLICATIONS and source by Caravan, Boat or Camping etc or if you prefer to source your pump by pump style simply click on PUMPS which will take you to choices of 12 volt or 24 volt pumps and styles available.

A mounting bracket on this pressure tank allows universal vertical or horizontal mounting.


This large capacity, pressurized metal tank is perfect for household or marine environments to service with multiple outlets. The rubber inner membrane eliminates maintenance.

  • Jabsco is a world leading brand
  • Model J40 110 
  • Part Number 23240-2000
  •  8 Litre Accumulator tank
  • Water is totally separated from the air chamber by a rubber bladder
  • Smooth flow from taps and showers
  • 100 psi (6.9 bar) Maximum working pressure
  • Pre-pressurized to 20 psi (1.4 bar)
  • Extends pump life by reducing pump cycling
  • Eliminate pulsation and water hammer
  • Can be mounted vertically or horizontally
  • Includes mounting brackets
  • Can be fine-tuned to each system