This is the Waterco Essencia water filter. 
Water is central to a healthy lifestyle and well being. Our water sources contain impurities absorbed by water from the air; the earth's surface and man-made chemicals. Chlorine is used by water treatment plants to disinfect water, leaving an objectionable taste of chlorine in the water we drink. Water has to travel many miles through pipes before it reaches our taps. Along this journey there is often a build-up of rust, dirt, slime and bacteria.
This filter is very easy to use. Simply fill the top reservoir with tap water. It will then pass through the ceramic cartridge into the lower chamber. The ceramic layer of the cartridge filters out suspended solids and micro organisms. The cartridges core of activated carbon absorbs offending organic chemicals, tastes, odours and chlorine.
On the dropdown menu there is a full list of spares for this filter to include:
A replacement Ceramic Cartridge,
A replacement tap to include rubber washer and backnut,
Replacement lids, bases, inner and outer chambers.  
All the prices include standard shipping costs. All items are brand new and the complete filter itself is boxed by the manufactuer.