Caps & Plugs Plumbing Fittings

In this Category you will find Caps & Plugs used to cap pipes or plug fittings. Caps would be considered Slip meaning you would glue a pipe or fitting inside of the Cap and the Plugs would be Street meaning they would be glued inside of a Fitting to plug it off. An Example of each would be a 2” Cap would be 2 ⅜” Inside Diameter to accept a 2” Pipe which would be 2” Outside Diameter and a 2” Plug would be 2 ⅜” Outside Diameter and would glue into a fitting that was 2 ⅜” Inside Diameter. See the chart for the Size Conversion.

This is a chart for the outside of your plumbing pipes so you can figure out what size parts to order. Note: The actual size a part is called is not the actual size of the hole in the part it is really the Inside Diameter of the pipe that would glue into that part which doesn’t make sense, since you cannot see inside the pipe. Therefore I am giving you the measurements of the outside of the pipe so you know what size part to order.  For example a part that is ½” plumbing would glue into would actually measure ¾” inside the hole of the part and on the outside of the pipe that glues into the part.<br>

Pipe Outside Diameter chart:<br>

½” Outside Diameter is ¾”<br>

¾” Outside Diameter is 1”<br>

1” Outside Diameter is 1 ¼”<br>

I have never seen 1 ¼” in Hot Tubs<br>

1 ½” Outside Diameter is 1 ⅞”<br>

2” Outside Diameter is 2 ⅜”<br>

2 ½” Outside Diameter is 2 ⅞”<br>