- Pressure relief automatically resets for each inflation
- Pressure relief has no moving parts to fail or malfunction
- One-piece rubber portion is molded with no seams or bonded parts
- Pressure relief exhausts out of the top of the plug instead of into the test area
- 5 sealing ribs are located in the center portion of the plug for positive sealing
- Works in place of other "standard" pneumatic plugs
- 3 years limited warranty
CHERNE® Plug, Test-Ball® Collection, Fits Pipe Size: 3 in, 13 psi