143-8 Series Reinforced Threaded and Hub Plugs Sizes: 2.2" to 4.6"

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Clean-Out Gripper® Plug

Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions

These plugs have a natural rubber o-ring seal.

Reinforced ABS & SS Threaded Plugs Features:

  • Guaranteed to seal any damaged threads
  • Made with glass-reinforced ABS plastic
  • Black color blends well with cast-iron pipe
  • Stainless steel hardware
  • NPT sizes, including hard to find 3½"
  • Patented natural rubber threaded o-ring for positive seal
hub plug illustration

Click an Item Number below to order

Range of Use Maximum Back Pressure* Length Shpg Wt lbs Item Number Unit Price Each
Reinforced ABS & SS Threaded Plugs
2.17"-2.46" (55-62 mm) 17 psi 40 ft. 1.9" 1 143-8020
3.23"-3.5" (82-88 mm) 17 psi 40 ft. 2.2" 1 143-8030
3.78"-4.25" (96-107 mm) 17 psi 40 ft. 2.2" 1 143-8035
4.28"-4.63" (108-117 mm) 17 psi 40 ft. 2.2" 1 143-8040
Always block plugs when conducting air tests

Reinforced ABS & Steel DWV Hub Test Plugs Features:

  • Ideal for use in hub fittings and in bell-end pipe
  • Pressure rated for conducting DWV tests
  • Made with glass-reinforced ABS plastic
  • Yellow color for greater visibility in pipe
  • Natural rubber o-ring for positive seal
  • Galvanized carriage bolt to prevent corrosion
  • Easy-to-install, extra large zinc wing nut - won't rust
Hub-Fit Gripper® Plugs
Range of Use Maximum Back Pressure Length Shpg Wt lbs Item Number Unit Price Each
Reinforced ABS & Steel DWV Hub Test Plugs
2.35"-2.49" (59-63 mm) 13 psi(0,9 bar) 30 ft.(9 M) 1.9"(48 mm) 1 143-8020-B
3.55"-3.85" (90-97 mm) 13 psi(0,9 bar) 30 ft.(9 M) 2.4"(61 mm) 1 143-8030-B
4.44"-4.83" (112-122 mm) 13 psi(0,9 bar) 30 ft.(9 M) 2.4"(61mm) 1 143-8040-B
Always block plugs when conducting air tests

*Mechanical Plug Warning: Maximum head pressures that a pipe plug may hold back can only be estimated. Pressures are influenced by many factors including fluid and debris in the pipeline, type and condition of pipe, tightness of plug seal, and temperature. Plugs should always be inserted fully into pipeline and should be mechanically blocked when slippage could cause property damage or injury. NEVER use a test pressure greater than the capacity of the weakest pipe or component in the system. NEVER use a mechanical plug when its failure could cause injury.