Due to the Holiday schedule this year, Superior Signal will be closing early on 12/24/2025 and reopening on 1/5/2026. Orders to be shipped in 2025 must be placed as early as possible the week of 12/15/2025, or sooner. Last shipping day of the year will be Tuesday 12/23/25. Orders to be recorded as 2025 orders must be placed by end of day Monday 12/22/25. Shipping will resume the week of 1/5/2026.

4"-6" Long Test Ball MS2

4"-6" Long Test Ball MS2

$353.52 each

Long Test Ball PlugLong Test-Ball® Plugs are a great way to quickly & easily plug lateral lines to buildings when smoke testing. These long plugs seal the way at any cleanout — inside or outside the building — to keep smoke OUT when smoke testing municipal sewers, or to keep smoke IN when smoke testing the building plumbing. Molded-in sealing ribs at each end of the plug ensure a leak-free seal. A necessary tool for nearly all smoke testing.

There may be a 1-2 week lead time before this item ships

4" - 6" Long Test Ball Plug Features

  • Nylon strap and safety handle prevents plug from sliding down a line
  • Includes 5' extension hose

Lateral Plug Specs

Part # Size Range of Use Inflation Pressure Max Back Pressure
P-274518 2" - 3" 1.75" - 3.25" 40 psi 13 psi
P-274526 3" - 4" 2.75" - 4.25" 40 psi 13 psi
P-274534 4" - 6" 3.5" - 6.25" 30 psi 13 psi
P-271098 4" - 6" 3.25" - 6.25" 45 psi 13 psi, 30'

Questions? Contact Us
To Order: Call 732-251-0800 or Find a Dealer