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Estimated delivery: June 5 – June 7
The Cherne 4" Econ-O-Grip plug (part #271-543) is a low-cost mechanical blocking plug for 4" pipe — rated for 2 PSI maximum. Natural rubber O-ring with galvanized metal plates and bolt. Not rated for pressure testing — for low-pressure blocking and pipe dust covers only. The economical option for temporary 4" pipe blockage on job sites where full pressure testing is not required.
Key Features
- 2 PSI maximum — low-pressure blocking only
- Not for pressure testing — for blocking and dust covers only
- Natural rubber O-ring — seals round and out-of-round pipes
- Galvanized hardware — metal plates and bolt resist corrosion
- Wing nut expansion — no tools required
Technical Specifications
| Cherne Part Number | 271-543 |
| Tamaño nominal de la tubería | 4" |
| Max Back Pressure | 2 PSI (low-pressure blocking only) |
| Seal | Junta tórica de caucho natural |
| Hardware | Galvanized metal plates and bolt |
| Operating Temperature | 0°F to 125°F |
| Pressure Testing | NOT RECOMMENDED — use Sure-Grip or Gripper for testing |
Aplicaciones
Temporary pipe blocking during construction, dust covers on open pipe ends, low-pressure flow blocking, and any application where full pressure testing is not required. For DWV pressure testing, use the Cherne Sure-Grip (up to 22 PSI) or Gripper plugs (up to 17 PSI) instead.
Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — same-day shipping on in-stock items, tax-exempt purchasing for qualified accounts.


