Previous Product 4” – 3” DUCT REDUCER $8.88 Call us Related products Quick View Quick View 6” – 5” DUCT REDUCER $9.99 Quick View Quick View 6” – 4” DUCT REDUCER $3.32 Quick View Quick View 5” – 3” DUCT REDUCER $7.76 Quick View Quick View 6” – 4” DUCT REDUCER $7.89
