You Are Here : Pond Products > Pumping and Filtering your Pond > Combined Pond Filter and UV Units > Oase FiltoMatic CWS Combined Filters
Use the table below to select the correctly sized item. If you have any difficulties deciding which size is right for you, contact us by email or phone and we will be very happy to assist you.
What is Effective Volume ? The effective volume is the quantity of water in your pond, plus an allowance for shallow and or ponds exposed to high levels of sunlight. Both of these situations will result in a higher than normal algae growth, and fish pollution. We advise that to ensure your that your equipment is correctly sized, the effective volume be considered the minimum size for the equipment you select. However do remember to check the details of the product you are interested in, to ensure that there are no other allowances or consideration specific to that product are required.
The Extra Large Oase Filtomatic Cap is a visually attractive cover, which is tailor-made for Filtomatic 12000 / 25000 automatic filter units. This natural rock look decorative cover is visually appealing and can be easily integrated in to your natural garden landscape.These Polyurethane resin covers are frost resistant and allow the filter to be hidden but still allows quick and simple access. Extra Large - Length 450mm x Width 650mm x Height 350mm.(suits Filtomatic 12000 / 25000)