Black rubber vibration damper for mounting the motor base to the center pan. The Trion 90 damper is used in the 707U, 707SM, 707TW, 707. Four dampers are used in the 707's, our price is for a package of four.
The vibration damper has a 9/16" diameter stepped down to 3/8" diameter. The hole diameter is 1/8". Thickness is 1/4".
Instructions for installing the impeller with a 1/16" gap:
Trion Impeller Installation.