Truma Ultraflow Filter £11.50 Truma Ultraflow Filter New item. Truma Ultraflow Filter SKU: 8576 £11.50 Quantity: 1 Quantity: 2 Quantity: 3 Please note all of the parts we offer for sale are used unless stated otherwise. All parts are tested to function correctly and be fit for purpose. They may however, have some minor cosmetic marks. Call us on 01422 384508 for more information on this product.