Spiral Pipe Diffuser with Transition Box SD52-16X10G Step Down Ceiling Diffuser Locking screw to hold damper

Locking screw to hold damper in place

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 16" Duct Opening (front blades parallel to shortest dimension)

Standard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable steel blades * Steel blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 931 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

All steel construction

For evaporative coolers or central blower systems

Spiral Pipe Diffuser with Transition Box SD52-16X10G Step Down Ceiling Diffuser Locking screw to hold damperSD52 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