Metal Form is a renowned creator, trader and exporter of Radiator Accessories, Radiator Caps, Radiator Pressure Caps, Plastic Radiator Pressure Caps, Radiator Filler Necks, Oil / Fuel Filler Caps and many more. Metal Form offers Knob Type Radiator Pressure Cap available with Pressure Release System. This radiator pressure cap has an inbuilt safety feature of releasing pressure when required and before cap opening.