About the 20" x 20" Step Down Ceiling Diffuser, Opposed Blade Damper, White - Shoemaker 100-0-20X20
Be sure to take advantage of this deal on the 20" x 20" Step Down Ceiling Diffuser, Opposed Blade Damper in soft white (Shoemaker 100-0-20X20) from the pros at PlumbersStock. Features include 4-way uniform air distribution, countersunk mounting holes, rust-resistant pre-coat. What sets the 100-O series apart is that they have an opposed blade damper that operates with the use of a lever. Shoemaker is a leader among HVAC manufacturers because they always deliver when it comes to reliability.