30" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Round Duct Pipe Operating temperature from -40°f to

Operating temperature from -40°f to +248°f [-40°c to +120°c]

actual front end outer dimensions are approximately 34 5/8" width X 27 5/8" height -

+ Product Details Size - 24"w X 14"h is the size for the duct opening measurement only

Experience enhanced indoor comfort with our 6" Butterfly Damper

Carefully packaged for protection during shipment

30" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Round Duct Pipe Operating temperature from -40°f to+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 34" OR 34" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 33. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum