10" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 10in Energy Efficient – Air-tight inner

Energy Efficient – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient / No fiberglass erosion into air stream

please note that the total outer dimensions of the grille measure 12" in diameter

+ Product Details Size – 40"w X 10"h is the size for the duct opening measurement only

5 IN A PACK - 7 Inch Diameter Pipe – 25 Foot Length When Connected – 30 Gauge Thick & Made of Thick & Durable Galvanized Sheet Metal - Used For HVAC System Duct Work In Any Building or Home In Any Building or HomeIn Any Building or HomeIn Any Building or HomeIn Any Building or Home

10" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 10in Energy Efficient – Air-tight inner+ Product Details Size 10"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 12. 5"w X 22. 5"h] Actual Filter Size 9 3 4"w x 21 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,