If you are looking for PVC Piping like: 

* PVC, CPVC SCH 80 Pipe & Fitting
    * PVC SCH 40 Clear Pipes
    * PP Pipe & Fitting
    * PVDF Pipe & Fitting
    * HDPE Pipe & Fitting
    * HDPE Perforated Corrugated Drainage Pipe & Fitting
    * HDPE Single or Double Wall Corrugated Cable Pipe & Fitting
    * Valves
    * PVC, CPVC, PP, HDPE Sheet & Rod
    * PVC Foamed Sheets
    * Plastwood Sheets
    * PC, Acrylic & A-pet Sheets
    * PC-Twin Wall Sheets
    * PVC Curtain (Flexible Strips)
    * HDPE Sun Shade Net
You can vistit this site:
http://www.aikhock.com/pvc_cpvc.htm
More link:
http://www.charlottepipe.com/
http://www.flexpvc.com/
http://www.plumbingsupply.com/spaflex.html
http://www.tradekey.com/ks-pvc-pipe/