Round Metal Pipe Reducer & Increaser | 10" to 9" HVAC Duct Reducer or Increaser 26g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 9" End Register Duct Boots #hvac-product-accordion { border: 2px solid Product Details Size 14 RG1612AL Height_16in

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The premium durable material guarantees that they will never rust or wear through

Actual Filter Size – 29 3/4"w x 17 3/4" x 1"

Verify that the surface is stable and level to prevent vibrations and noise

+ Product Details Size – 14" x 28" or 28" x 14" is the size for the duct opening measurement only

Round Metal Pipe Reducer & Increaser 10" to 9" HVAC Duct Reducer or Increaser 26g Gauge Galvanized Sheet Metal Ducting Connector is Compatible with Duct 9" End Register Duct Boots #hvac product accordion { border: 2px solid Product Details Size 14 RG1612AL Height_16in #hvac product accordion { border: 2px solid #5296DD The premium durable material guarantees that they will never rust or wear through