Lansas multi-size Flow-Thru plugs have the same patented features as their standard Domehead plugs. The Flow-Thru plugs are designed with a large by-pass through the plug for use in water testing and sewer bypass. The plugs are equipped with a Male NPT threaded end to enable connecting to a hose or pipe. Female NPT can be special ordered if required. Threaded ends vary by plug size; see chart below for connection size.
Flow-Thru plugs are available in sizes to accommodate 4" through 96" diameter pipe. The most popular sizes are below. If you need a different size just call and we can get it for you. All models include a lifting eye and an inflation port.