25" x 20" Aluminum Return Grille - Easy Airflow - Linear Bar Grilles Compatible With Duct 6in + Product Details Size –

+ Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only

+ Product Details Size – The 8" sheet metal 45-degree oval vertical duct angle is compatible with duct 8"

+ Product Details Size & Compatibilty - The 14" to 12" round metal pipe reducer & increaser 30 gauge is compatible with duct 14" to 12"

The snap-lock/push-open technology allows easy access and installation on DryWall

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 18" Or 18" x 34" duct opening (measured at the opening)

25" x 20" Aluminum Return Grille - Easy Airflow - Linear Bar Grilles Compatible With Duct 6in + Product Details Size –25" X 20"opening dimension (vent opening) actual total grille size is approx. 1. 5" wider SEE BELOW HOW TO MEASURE A GRILLE Sidewall and or Ceiling Grille HIGH QUALITY High Quality Solid Stamped Steel with Counter Sunk Screw Holes (SCREWS INCLUDED) and No Sharp Edges Powder Coat Finish Smooth, Shiny, Scratch Resistant, Beautiful. Looks Like It Was Just Waxed UNRESTRICTED AIRFLOW For Your HVAC System Noise Free Components No Vibrating Louvers Etc.