CXM20 Rubber Support Home » Products » C-Port Rooftop Rubber Pipe Supports » Rubber Supports » CXM20 Rubber Support The base of the CXM20 is made from 100% recycled rubber and has a maximum load of 500 lbs. Specification Sheet Catalog Catalog List Pricing Current Catalog: C-PORT-2023 Downloads Downloads C-PORT Cross Reference C-PORT Features Terms and Warranty Plan Page Plan Page General C-Port Products Engineering-Sheet Return to Products