Plastic Universal and Regular Plugs for temporarily plugging duct, bell-ends, and terminators. These polyethylene plugs come in sizes to fit all types of manufactured duct, even when it’s bell-ended or couplings is attached. Underground Product’s extended lip design permits easy extraction.
![]() | Universal Plugs | Dimensions | |||||||
| Nominal Size | Part # | Std.Pack | Weight lbs. | A | B | C | D | T | |
| 2" Universal Plug | 139-1 | 176 | 11 | 3.15 | 2.60 | 1.20 | 2.90 | 0.100 | |
| 3" Universal Plug | 143-1 | 200 | 34 | 4.25 | 3.65 | 2.75 | 3.75 | 0.100 | |
| 4" Universal Plug | 140-1 | 180 | 39 | 5.40 | 4.70 | 3.70 | 3.90 | 0.100 | |
| 5" Universal Plug | 141-1 | 100 | 26 | 6.30 | 5.75 | 4.80 | 3.75 | 0.100 | |
| 6" Universal Plug | 142-1 | 90 | 32 | 7.35 | 6.80 | 5.82 | 3.75 | 0.100 | |
| All dimensions are in inches. | |||||||||
| Regular Plugs | |||||||||
| Nominal Size | Part # | Std.Pack | Weight lbs. | A | B | C | D | T | |
| 2" Regular Plug | 54-1 | 100 | 10 | 2.85 | 2.10 | 1.80 | 2.85 | 0.125 | |
| 3" Regular Plug | 55-1 | 100 | 18 | 3.85 | 3.15 | 2.80 | 2.80 | 0.125 | |
| 3 1/2" Regular Plug | 56-1 | 100 | 20 | 4.35 | 3.65 | 3.40 | 2.85 | 0.125 | |
| 4" Regular Plug | 57-1 | 100 | 20 | 4.85 | 4.15 | 3.80 | 2.90 | 0.125 | |
| 5" Regular Plug | 60-1 | 80 | 25 | 5.90 | 5.20 | 4.75 | 3.75 | 0.125 | |
| 6" Regular Plug | 61-1 | 60 | 26 | 6.90 | 6.20 | 5.75 | 3.80 | 0.125 | |
| 4" Long Plug | 145-1 | 100 | 26 | All dimensions are in inches. | |||||
