All flow test were performed by D & A Machine Shop 764 Scott Road Canton ,GA 30115 (770) 479-5873 on their Flow Data flow bench with Flow Pro Software. All test were performed at the test pressure of 8" Water Column.Results are (ACFM)Actual CFM.

TEST RESULTS DIRT-PRO " 357 PLUS " ( 806 CFM )

TEST RESULTS DIRT-PRO # 3011 ( 479 CFM ) DIRT-PRO # 3511 ( 573 CFM )