Spiral Pipe Diffuser with Transition Box SD52-12X4G Finish:Designer Color - Aluminum Paint Provides 4-way air flow on

Provides 4-way air flow on one plane

Blades parallel to shortest dimension

Filter retention tabs

Concealed mounting holes with mounting screws

4-way flush step down steel diffuser

Spiral Pipe Diffuser with Transition Box SD52-12X4G Finish:Designer Color - Aluminum Paint Provides 4-way air flow onSD52 Transition Box Spiral Pipe Grille (Single Deflection) Standard Features Single deflection transition box mount spiral pipe grille Blades are parallel to the shortest dimension Allows for 2 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 width of