The four-way PVC fittings on this page will fit sch 40, Sch 80, Class 200, Class 315, co-extruded furniture pipe and any other IPS size PVC pipe, plumbing grade or furniture grade. If you want to use the 1/2" and 3/4" PVC wye fittings on this page (which are all referred to as IPS or Sch 40 fittings) with CTS (the cream color CPvC pipe) you can use CPVC CTS to PVC IPS adapters.
Some MADE IN THE USA, some imported
Furniture grade, (UV protected) Side outlet. Used for table bases and tops. Also other uses. Is a flow through fitting, but not a NSF rated fitting. (It'll pass fluid, but not a building inspection.) Will fit 1.25" Sch 40/80 pipe, Class 200, 315, SDR, etc. The 3 ports are at 120° to each other. The 4th port is perpendicular (at 90°s) to the plane created by the first 3 ports. Can be used for plumbing projects, but not NSF rated. (ie, nothing that has to be meet building code.)