Package Quantity: you will get 2 sets of test plugs equipment, including 2 pieces inflatable tube balloon plugs, 2 pieces gas tubes and 2 pieces inflator pumps, ideal for testing pipe pressure in a wide range of scenarios: ideal for shower drain/ floor drain/ bathtub pipe/ bathroom pipe/ toilet drain/ swimming pool pipe/ basement drain/ underground sewage pipe

Easy to Use: put into the pipe mouth, and then inflate the balloon plug for use, suitable for the use of pipe diameter range: 2.9-3 inches; Balloon deflated diameter: 2.8 inches, deflated length: 4.7 inches

Easy to Use: each rubber stopper is equipped with an inflation tube and an inflation pump for convenient use, When using the inflatable plug for the first time, open the inflatable valve first to let the air fully enter the plug, then close the valve to start inflating, which will save more energy

Working Pressure: the maximum working pressure should not exceed 2.9 PSI/ 20 kpa/ 0.02MPa

Reliable Material: natural rubber material, with good expansion and memory; 2 packages are cost-effective and can be applied for a long time