(floor) Duct opening size - 4 x 12 White Pro-Linear return (no damper) with a minimal flange on one long side and no screw holes
(right) Pattern size - 3 x 10.5 (overall dimensions 3.75 x 11.75) White Pro-Linear vent cover with screw holes on the short ends only - no frame or damper on the back
(left) Pattern size - 3 x 10.5 (overall dimensions 3.75 x 11-7/8) White Pro-Linear vent cover with screw holes on the short ends only - no frame or damper on the back
(Wall) Opening size - 5.5 x 11 (overall dimensions - 7-3/8 x 13-3/8) White Pro-Linear vent cover - no frame or damper on the back. Screw holes on the short ends only.
CAD requested for all 4. Please specify distance between screw holes on the CAD for the items with screw holes
