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" RV Mobile Home The permanently attached eight-tumbler lock

The permanently attached eight-tumbler lock with a supplied key adds an extra layer of security

It comes with two versatile mounting base options—solid and ring—making installation simple and flexible

For a visual guide on how to measure your vent hole before ordering a grille

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 24" duct opening (measured at the opening)

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" RV Mobile Home The permanently attached eight-tumbler lock+ Product Details Size & Compatibilty The 10" to 9" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 9". Made in the USA Premium Quality Our galvanized ducting connector is made of high quality galvanized sheet metal. Applications Reducers transition ducts from larger to smaller sizes and ensure smooth, continuous airflow. + Product Description The HVAC Premium Round Metal Pipe Reducer & Increaser is crafted from high