Models
Adjustable Pattern
6550 - Adjustable Pattern
6550-O - with Steel OBD
Fixed Pattern
6500 - Fixed Pattern
6500-O - with Steel OBD
6500FP - Fiberglass Plenum • 24 x 24 • Type L - Layin
Induction Vanes
6500IV - Diffuser Only
6500IV-O - with Steel OBD