12x8 Duct Opening 1 Way Steel Air Supply Diffuser Register Vent Cover Grill for Sidewall and Ceiling Whether you prefer to leave

Whether you prefer to leave it fully open for optimal airflow or close it off completely to redirect extra heat or air conditioning to other rooms

actual overall outside dimension is 18

Stamped Face Steel Construction with 1/2" fin spacing for high air flow

The Shark Industrial faucet connector features a 1/2-inch FIP x 1/2- inch FIP nut connection

and two swivel fittings that allow 360° movement for added flexibility

12x8 Duct Opening 1 Way Steel Air Supply Diffuser Register Vent Cover Grill for Sidewall and Ceiling Whether you prefer to leaveThe Listed size 12"x 8" is for inside duct opening measurement, outside dimension is 13. 75" X 9. 75" Stamped Face Steel Construction with 1 2" fin spacing for high air flow One Way Air Flow deflection Multi shutter damper with easy handle to adjust desired amount of air flow Individually packed