Part number 316M3603-480V 4. 72 inch dia. x 5.97 inch wide Expandable Band Heater 480V 2500W with post terminal @ 90 deg. from gap center width,( 1) 1 inch dia TC hole @ 315 deg. from gap and 3 inch from top edge, terminal covers, 3/8 inch gap, and welded on barrel nuts lock up, per customer supplied sketch. (N 1)