The Diaphragm assembly kit contains: 2 x diaphragms mounted in surrounds, 2 x casing blocks with flapper valves pre-fitted, 2 x nylon lock nuts & washers.
The Diaphragm assembly kit contains: 2 x diaphragms mounted in surrounds, 2 x casing blocks with flapper valves pre-fitted, 2 x nylon lock nuts & washers.