22U-139 | Hub Donut 2 x 1-/2 Inch Cast Iron Cast Iron Service Weight x DWV | Fernco Used on_Freedom FCM070; FCM090; and FCM120 Boilers Trust Our trusted HVAC store

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**Key Features:** * **Material:** Hardened Steel * **Thread Size:** M18 x 1

T-nuts are commonly used in industrial applications to secure components to T-slotted framing or other T-slotted structures

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22U-139 | Hub Donut 2 x 1-/2 Inch Cast Iron Cast Iron Service Weight x DWV | Fernco Used on_Freedom FCM070; FCM090; and FCM120 Boilers Trust Our trusted HVAC storeFernco Hub Donut 2 x 1 1 2 Inch Cast Iron Service Weight x DWV Fernco Hub Donut 2 x 1 1 2", Cast Iron, Cast Iron Service Weight x DWV The Fernco Hub Donut is a cast iron fitting used to connect a 2" cast iron sanitary drain pipe to a 1 1 2" cast iron service weight pipe. It is a hub donut, which means that it has a hub on one end and a spigot on the other. The hub is a female fitting that fits over the male end of the pipe, while the spigot is a male