Delock Products Slot brackets

What is DWV Pipe? dwv slot Alfa Slot® Alfa Slot is a light duty trench system manufactured from PVC pipe with chemically resistant polymer concrete slot drain Alfa Slot is available dwv slot JONES STEPHENS 4 in x 3 in Cast Iron Push-In Water Closet Flange for 4 in Cast Iron or Sch 40 DWV Choice of closet bolt slots or

dwv99 slot What is DWV PVC used for, and is it different from schedule 40 PVC pipe and fittings?