Pneumatic Test-Ball Winter Plug for 6 Inch Pipe - 5.44 to 6.25 Inch Usage Range Signs Hours (no Capacity) 32 inches between rows

32 inches between rows

They have an open area of 183

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This Astral Vertical Sand Filter 93 Inch Standard Series has 6 inch connections

Pneumatic Test-Ball Winter Plug for 6 Inch Pipe - 5.44 to 6.25 Inch Usage Range Signs Hours (no Capacity) 32 inches between rowsThis 6 inch pneumatic test ball winter plug is designed for a variety of applications including winterizing pools by blocking pipes. They can also be used to test drains, tests and waste systems. And they can be used on any type of pipe. Made from natural rubber, these plugs are tough, tear resistant and have excellent expansion and memory. The removable zinc plated steel chain and ring handle act as an anchor to prevent plug from sliding down a line.