Adapter Plate 6 Holes 21"W x 13"D
Adapter Plate Two 21"W x 13"D, (1) 6-3/8" hole and (1) 10-3/8" hole
Adapter Panels 3 Holes 21"W x 13"D
Adapter Plate Two Holes 21"W x 13"D, (1) 6-3/8" hole and (1) 8-3/8" hole
Adapter Plate 21"W x 13"D, (1) 8-3/8" hole and (1) 10-3/8" hole
Adapter Plate 21"W x 13"D, (2) 8-3/8" holes