Plugs, End Caps, & Bushings

Plugs, end caps and bushings are small, inexpensive accessories that are widely used in home brewing setups to attached or secure parts in place or to close off an unused opening in a brew pot or length of tubing. In a home brewing setup, plugs, caps and bushings are often threaded. The threading on/in a fitting serves as a fastener for whatever object it is inserted into or that is inserted into it.

They come in different types (including barbed) depending on their applications. They can be made from Plastic, Brass or Stainless Steel. However, in a home brewing setup, threaded plugs, caps and bushings made from Stainless Steel are suggested as they are rust and corrosion-resistant and can withstand stronger tension, torque loads and are often PSI rated. When choosing a plug, end cap or bushing, make sure that the fitting is compatible. This means that if you have a female pipe fitting, you need a male threaded insert and vice versa. (more info below)