Automatic pressure sealing pop-up valve, for small 10" blast pots.
Allows for fast pressurization of the blast pot.
Durable reinforced rubber mushroom head.
Dome at bottom is 68mm diameter, and is 30mm deep
Stem is approx. 120mm long, and 14mm ext. diameter
Very hard wearing & long lasting. Fits C20L, 10A, 1028, and many other small blast pots