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GAA-3 GilSonic AutoSiever® Replacement Diaphragm Only is a latex diaphragm required for use with the GA-6 GilSonic Autosiever and other Sonic Sifters. The diaphragm locks the top of the GAA-2 Sieve Stack Assembly to seal the air column within the sieve stack during testing. A diaphragm is included with the GA-6 AutoSiever and the GAA-2 Stack Assembly, and is also available as a replacement item for both products.
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