Be sure to take advantage of this deal on the 16" x 36" Stamped Face Filter Grille, 2" Housing in soft white (Shoemaker FG2-16X36) from PlumbersStock. This FG2 series stamped face filter grille has louvers with 1/2-inch spacing. The filter housing accommodates filters that are 2-inch thick. It's got a hinge that opens parallel to the longest side. If rectangular, then it's 2-way reversible. If a perfect square, then it's 4-way reversible. It's easy to access and clean. The filter retention tabs hold it into place. Shoemaker is a leader among HVAC manufacturers because they always deliver when it comes to reliability.