M&M Manufacturing 503ATH 503ATH20 Air-Tite Starting Collar, 20" Fitting Size, Round, Gasketed Flange, Slip-Fit, 5-1/4" Height, Flange Mount, 26 Ga, ASTM-A653 CS B Galvanized Steel
M&M Manufacturing 503ATH 503ATH20 Air-Tite Starting Collar, 20" Fitting Size, Round, Gasketed Flange, Slip-Fit, 5-1/4" Height, Flange Mount, 26 Ga, ASTM-A653 CS B Galvanized Steel
| Color | : | Silver |
| Connection Type | : | Gasketed Flange, Slip-Fit |
| Diameter | : | 20 " |
| Domestic/Import | : | Domestic |
| Finish | : | Galvanized |
| Fitting Size | : | 20 " |
| Gauge | : | 26 ga |
| Height | : | 5-1/4 " |
| Length | : | 23 " |
| Material | : | ASTM-A653 CS B Galvanized Steel |
| Mounting Type | : | Flange Mount |
| Series | : | 503ATH |
| Shape | : | Round |
| Suitable For Use With | : | Round Ductwork |
This 503ATH Series round starting collar provides a secure connection point for 20-inch diameter ductwork. It features an Air-Tite gasket integrated into the flange, designed to minimize air leakage at the joint for improved system efficiency.Constructed from durable 26-gauge galvanized steel meeting ASTM-A653 CS B standards, this collar has a 5-1/4 inch height. It also includes pre-drilled 5/16-inch mounting holes, suitable for adding a damper if required by the application.
M&M Manufacturing Air-Tite Starting Collar, Model: 503ATH, 20" Fitting Size, Round, Gasketed Flange, Slip-Fit, 5-1/4" Height, Flange Mount, 26 Ga, ASTM-A653 CS B Galvanized Steel, Galvanized, Silver, 23" Length, Domestic
- Features an integrated Air-Tite gasket on the flange for a secure, low-leakage seal.
- Constructed from durable 26-gauge galvanized steel meeting ASTM A653 CS B standards.
- Includes pre-drilled 5/16-inch holes for optional damper mounting.
- Designed for easy connection to 20-inch round ductwork.
- 5-1/4 inch height provides adequate connection length.
- Made in the USA.