Radiator-Keys-Brass-Pack-of-2-Faithfull-FAIRADKEY-p-The-Faithfull-Radiator-Keys-are-used-for-venting-excess-air-from-radiators-these-traditional-radiator-keys-are-a-handy-item-for-storing-in-a-toolbox-or-kitchen-drawer-p-Faithfull-FAIRADKEY-Radiator-Keys-Brass-Pack-of-2-