Truma Spare 46010-01 Ultraflow Filter Housing WHITE (11 ratings) £85.98 Quantity: at £85.98 each Add To Basket 10 in stock. The Ultraflow Filter Housing allows you to filter the water supplied to your vehicle from your Aquaroll or from a mains supply. Features include: a pump assembly and accessory plug point, a replacement filter housing, time indicator and a protective cover. Fitted by most UK manufacturers, including Bailey, Coachman, Lunar and Swift. Included components: Ultraflow Filter Housing, Ultraflow Filter Block, one set of screws, one set of instructions Available in white.