Spiral Pipe Diffuser with Transition Box SD34-20X12G Spiral Pipe Diameter:12" Standard Features * 1/2" x

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with

Standard Features * Heavy guage cold roll steel (same as 350 series) * Ideal for return air in the toe space areas between kitchen cabinets

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 24" Duct Opening (front blades parallel to shortest dimension)

Extruded aluminum surface mount frame with signature line marks

Adjustable steel curved blades

Spiral Pipe Diffuser with Transition Box SD34-20X12G Spiral Pipe Diameter:12" Standard Features * 1/2" xSD34 Transition Box Spiral Pipe Grille (DOUBle Deflection) Standard Features Double deflection transition box mount spiral pipe grille Blades are parallel to the shortest dimension Allows for 4 way airflow adjustment Nylon bushings on adj. blades prevent metal on metal rattle Curved saddle with gasket provides airtight fit to spiral pipe Product sizes available to fit spiral pipe diameters 8 48." Spiral pipe diameter must be 4 larger than Height of