Content Container Models 4260 and 4260AA Eggcrate Aluminum Return Diffusers feature a 1/2" x 1/2" x 1/2" (13 x 13 x 13) core that provides a high free area. Available with either a round or square neck for ducted return applications. The backpan or frame is available in both corrosion-resistant steel and aluminum construction. Models 4260 - Steel Frame with ½” x ½” x ½” (13x13x13) aluminum grid core 4260AA - Aluminum Frame with ½” x ½” x ½” (13x13x13) aluminum grid core Submittals All Submittals Combined Individual Submittals 4260, 4260AA • Full Size • Square Neck 4260, 4260AA • Round or Square Neck Options and Accessories 4250 • Air Balancing Device • Radial Sliding Blade Damper • Steel • for Round Neck Diffusers 4275 • Air Balancing Device • Radial Opposed Blade Damper • Steel • for Round Neck Diffusers • 18" diameter 4275 • Air Balancing Device • Radial Opposed Blade Damper • Steel • for Round Neck Diffusers • 5-16" diameter 4675 • Air Balancing Device • Butterfly Damper • Steel • for Round Neck Diffusers OBD • Air Balancing Devices • Steel • Opposed Blade Damper • Neck Mounted • w/ Operator Types SL & PL OBD-A • Air Balancing Devices • Aluminum • Opposed Blade Damper • for Square & Rectangular Necks • w/ Operator Types SL and PL Control Sequence Finish IOM Specifications Eggcrate Diffuser • 4260 Series • Word Document [.docx] Performance Data 4260, 4260AA • Full Face • Round and Square Neck Catalog Literature 3D 3D Embed