Test Plugs are user safe, they cannot be overinflated. Built-in pressure relief valve is pre-set to release excess pressure. All plugs are tested for 24hrs before shipping. Air or Water can be safely be used to expand the test plug.These plugs feature a 2 stage deflation which allows the access pipe to remain sealed while water clears the drain line. So no more back splash!
Trustpilot
3 days ago
2 weeks ago
