Subject: Blower, centrif, 7.5 hp, twin city, type rba, size 921,
Blower, complete with 7-1/2 hp drive, manufactured by Twin City Fan, 16" diameter inlet, 19" x 13" rectangular exhaust flanged outlet. Size 921, type RBA, arrangement 9L, serial 86-68486-12-1. Good condition.
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