HtabOverviewModels Accessories 4275 - Radial Opposed Blade Damper 4250 - Radial Sliding Blade Damper DFA - Aluminum • Drywall/Plaster Frame TUPAW - Touch-up paint • Appliance White Round RNR - Adjustable Horizontal Discharge Pattern RNRA1 - Adjustable Horizontal to Vertical Discharge Pattern RUNI - Plaque Face • Adjustable Horizontal to Vertical Discharge Pattern Square Diffusers RNS - Louvered Face • Steel • 12x12, 20x20 only RNS3 - Louvered Face • Steel • 24x24 only RNSA1 - Louvered Face • Steel • 4 Cone • Sliding Type UNI - Plaque Face • Steel • 12x12, 20x20 only UNI2 - Plaque Face • Steel • 24x24 only Submittals 4275 • Air Balancing Device • Radial Opposed Blade Damper • Steel • for Round Neck Diffusers • 6-16" diameter DFA • Aluminum • Drywall/Plaster Frame RNR • Spun Steel Construction • Horizontal Discharge Pattern RNRA1 • Spun Steel Construction • Adjustable Horizontal to Vertical Discharge Pattern RNS • 20 x 20 Module • Steel • Fixed Pattern • Louvered Face • Rnd. Neck • 3 Cone RNS • Steel • Fixed Pattern • Louvered Face • Steel • Rnd. Neck • 4 Cone RNS3 • Steel • Fixed Pattern • Louvered Face • Round Neck • 3 Cone RNSA1 • 'Sliding Type' • Steel • Adj. Pattern • Louvered Face • Rnd. Neck • 4 Cone RNSA1 • 20 x 20 Module • Steel • Adj. Pattern • Louvered Face • Round Neck • 3 Cone RUNI • Steel • Round Plaque • Adjustable Horizontal to Vertical Discharge UNI • Steel • Square Plaque • 20 x 20 Module UNI • Steel • Square Plaque • Concealed Neck Bracketry • 12 x 12 UNI2 • Steel • Square Plaque • Corner Posts • Round Neck Performance Data RNR • Steel • Horizontal Discharge RNRA1 • Steel • Adjustable Horizontal to Vertical Discharge Pattern RNS • Fixed Pattern RNS3 • 24 x 24 Face Size • IMPERIAL RNSA • Adjustable Pattern RUNI • Performance Data UNI • Square Plaque UNI2 Performance