Test Plugs & Caps

of 51 products

$1.48 · Save 21%



$3.48 · Save 31%



$0.90



$2.16 · Save 25%



$2.44 · Save 33%



$23.48 · Save 19%



$0.91



$3.61 · Save 40%



$5.71 · Save 25%



$5.68 · Save 26%



$2.00 · Save 27%



$22.06 · Save 28%



$24.35 · Save 27%


$30.49 · Save 21%



$4.68 · Save 22%



$131.88 · Save 14%



$0.37 · Save 29%



$1.13



$0.95


of 51 products

About Test Plugs and Caps

In order to test the water pressure in your home, you need test plugs and caps. They will allow you to create temporary seals in your plumbing pipe, which will allow you to accurately measure the pressure. Knockouts are a commonly used test plug, and they are often a very affordable solution. With PlumbersStock, you can save on the best plumbing products available anywhere online. We carry:

  • Jones Stephens
  • Oatey
  • Viega
  • and more!