8-Pack Saddle Support Rooftop Pipe Stand | Pipe Cradle, Sleeper Curb, and Holes for Attaching Strut | Made of 100% UV Resistant Recycled Plastic | Heavy Duty and Durable - - Amazon.com
Roof Performance Series (Part 4): An Alternative to Wood block Supports - CentiMark Blog
Roof Top Blox | Rooftop Pipe Support and Block Platform
MIRO Industries, Inc. - Rooftop Pipe Supports, Duct Supports, and more