7" X 12" DURA VENT #0034
3/4"THREAD-3/4 FEMALE PVC (0342)$0.49
RETURN AIR GRILL 20X12 N/S$21.601
6"X12" DURA VENT #0033$25.205
5" DURA VENT WALL THIMBLE #0162$31.737