10x BRASS Square Radiator Bleed & Vent Keys - Drain Water / Release Air Pressure Corrosion-resistant polished brass keys. For air vents to release air from water-filled radiators. Clock-type key handle for easy turning. Compatible with most radiator bleed valves. SIZE: L x W x H (mm) 139 x 73 x 2 WEIGHT: 0.01 t1080
