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The booster cup is made from a fiberglass coupler tube (4.6in long). It includes 12 radial holes of size 6-32 with centers located 0.3 in. from the edge of one side of the cylinder for interfacing with the diaphragm.
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The booster cup is made from a fiberglass coupler tube (4.6in long). It includes 12 radial holes of size 6-32 with centers located 0.3 in. from the edge of one side of the cylinder for interfacing with the diaphragm.
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