10" x 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size is for Duct Opening or Inside Measurement)First thing to know about size selection: take the vent cover off the wall or ceiling. Measure the duct opening where the vent can fit in. Use the measurement to determine right size to buy. This product has listed size 10w X 8h is for duct opening measurement only, actual outsize overall dimensions is 12 wide by 10 high. If your duct opening size is 10 x 8, this is the right size and will fit in well. If you measure outside or surface size, you will

The PEX material is very strong and can withstand high temprature and pressure

One Way Air Flow deflection

The Listed size 12"x 4" is for inside duct opening measurement

The Listed size 24"x6" is for inside duct opening measurement

Individually shrink wrapped with card board pad in the back for extra protectio

This air deflector is the perfect solution

This product has listed size 14“w X 6”h is for duct opening measurement only

actual outside dimension is 18

Dependable Performance: Ensures reliable and long-lasting results for plumbing or construction tasks

The Listed size 8"x10" is for inside duct opening measurement

[GUARANTEE]: One-year money back guarantee for product quality issues

making it ideal for connecting commercial gas appliances while allowing safe movement during cleaning or maintenance