Stormwater Fittings are a non pressure fitting. S/W Fittings are not designed with the same high impact strength as DWV Fittings as they have a thinner wall. They are joined to Stormwater Pipe using Blue Glue. (We recommend using a priming fluid before applying the glue) Stormwater fittings come with both Female/Female Ends and Male/Female Ends depending on the fitting.