Rooftop Support | Saddle Pipe Support | Rooftop Block Stand with Pipe Cradle and Sleeper Curb | UV Resistant | Made of 100% Recycled Plastic | Heavy and Extremely Durable, Pipe Supports - Amazon Canada
Roof Top Blox - Lightweight, Stackable Roof Top Pipe Support System - YouTube
DURA-BLOK™ Rooftop Supports
Roof Top Blox | Rooftop Pipe Support and Block Platform
Rooftop Support Blocks | Rubber Roof Blocks | RubberForm
Roof Top Blox RTB01 Polypropylene Roof Top Support Block for All Flat Commercial Roofs, 9" x 9", 250 lb. Load at Single Point, Black (Pack of 8) : Amazon.ca: Tools & Home Improvement
Rooftop Support Blocks | Rubber Roof Blocks | RubberForm