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Cherne rubber test ball plug, 4" nominal

Cherne ★ 3.8/5 · ItemOracle Score Budget

$39 USD
Price subject to change
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Cherne 270040 Rubber Test Ball Pipe Plug, 4" , Black

Rubber test ball plug for DWV systems, 4 in. nominal size with inflatable design for sealing. customers note its effectiveness for shower pan liners and drains in new construction

Highlights

  • tests DWV systems up to 13 PSI/30 ft
  • natural rubber body provides expansion
  • easy connections via standard tire fitting

Pros

  • elastic rubber body for expansion
  • inflatable design for hard-to-access openings
  • standard tire air fitting for connections
  • ring and chain helps prevent loss during tests

Cons

  • chain length reported as not long enough by several customers

Best For

  • sealing DWV test systems
  • checking shower pan liners
  • head testing drains in new construction
  • inserting through test tees to seal out-of-round openings
  • water retention during tests
  • durability under testing conditions

Features

  • 4 in. nominal test ball plug for DWV systems up to 13 PSI/30 ft
  • Natural rubber body with good expansion and memory
  • Inflatable design fits through test tees and seals out-of-round openings
  • Includes zinc-plated steel ring and chain to anchor plug during tests
  • Uses standard tire air fitting for simple connections

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