This is brand new but the box is tatty looking. The Tigerloop TON110I Heating Oil De-aerator is a brand new product from Tigerholm, designed to improve the efficiency of heating systems by removing impurities from the oil. With an Energy Efficiency Rating of A, this oil de-aerator is powered by oil and has a connection size of 1/4" BSP thread, suitable for boilers. The smart home protocol for this model is Thread, making it compatible with various smart home systems. Upgrade your heating system with this reliable and energy-efficient de-aerator