PVC Fitting Saver 2-Inch Head,2" PVC Pipe Reamer with 3/8-Inch Hex Shaft,Socket Saver Plumbing Tool Plastic Pipe Fitting Reamer for Sch.40 CPVC ABS Hub,Fit Standard 1/2" Drills

I used this on 2 jandy valves a few weeks ago so I could redo the plumbing beyond them: https://www.amazon.com/JYINCPED-Fitting-Plumbing-Plastic-Standard/dp/B0CPSJS3XZ But looking closer, I see that those fittings seem to already have bene installed OVER the jandy valve instead of inside of it. So if you cut them off, unless there is some other old pipe already cut off inside of it, you would be able to just use a smaller sized pipe inside of it. There are 2 models of jandy valves with diff interior/exterior sizings you may also fine flexible pvc helpful https://www.homedepot.com/b/Plumbing-Pipe-Fittings-Pipe-PVC-Pipe/Flexible/N-5yc1vZ1z18i41Z1z1b40q