| Round Access Door, For 8 Inch Duct Diameters, Insulated | $76.00 | | |
| Round Access Door, For 8 Inch Duct Diameters, Uninsulated | $69.00 | | |
| Round Access Door, For 9 Inch Duct Diameters, Insulated | $76.00 | | |
| Round Access Door, For 9 Inch Duct Diameters, Uninsulated | $69.00 | | |
| Round Ceiling Radiation Damper, 165° Fusible Link, Product # CRD2-10 | $55.00 | | |
| Round Connection Hooded Wall Cap, Model WC-4, For Models SP/CSP | $54.00 | | |
| Round Connection Hooded Wall Cap, Model WC-6, For Models SP/CSP | $66.00 | | |
| Round Connection Hooded Wall Cap, Model WC-8, For Models SP/CSP | $102.00 | | |
| Round Duct Connector, Model RDC-6, 6 In Dia, For Models SP/CSP | $39.00 | | |
| Round Duct Connector, Model RDC-8, 8 In Dia, For Models SP/CSP | $52.00 | | |
| Round Remote Balancing Damper, 12 In Diameter | $149.00 | | |
| Round transition reducer, Model TR-6X4, Product # 473324 | $18.00 | | |
