We know you need essentials like this quickly and without paying a premium. While radiator keys are not the most exciting thing you purchase today. At least you know you only need to buy it once from us! Manufactured with a Square opening these keys will fit almost every radiator on the market! Made of premium grade brass to ensure the key does not round the head of your radiator bleed valve/nipple.You wont find a better quality product at a cheaper price on the market. Radiator bleed keys. Brass - Easy grip. Solid Brass. Solid Alloy. Plumbing Tool Key Ideal for Home Use For Venting Air Valve Various Pack Sizes Available: 1 - 2 - 3 - 4 - 5, Manufacturer: Global Furnishing