Black plastic diffusing screen. The diffusing screen clips to the motor base. The Trion 45 diffusing screen is used in the 707U, 707SM, 707TW, 707. The circumference measures 20¾ inch. Width 5/8 inch. Instructions for installing the impeller with a 1/16" gap: Trion Impeller Installation (1 page, 70k pdf).
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