Product Details
The single-size test-ball plugs are designed for underground applications and are specifically intended to block sewer flow or serve as a back plug for sewer air testing. Constructed from natural rubber, these plugs provide excellent expansion and memory. They are capable of sealing both round and out-of-round pipes. The plugs include a removable inflation valve which can be replaced if damaged or upgraded with a quick disconnect fitting. Additionally, each plug features an eye-bolt that allows for use with a poly-lift line.
