When planning your Bio-Pure Sewage Treatment System installation, you may find your invert level is greater than the standard. If this is the case, then you will need a neck extension.
These neck extensions, sometimes known as risers, are available in 100-500mm options.
Please select the depth you require from the options above.
Offloading is the responsibility of the customer
Delivery lead times can vary, please contact us before ordering if you require the tank urgently.
Additional delivery charges may apply to this product.