Quad Pod System Pole A Perfect Place To Call Home The Quad Pod Purple Martin House Package includes everything you need to bring purple martins into your backyard birding sanctuary. Designed by Purple Martin enthusiasts, the stackable Quad Pod System provides 90-degree privacy and excellent predator protection. You will need the Quad Pod Pole to utilize this system. Easy to Use Purple Martin Houses Sold Separately 4 Pods Can Be Stacked on a Single Pole. In Stock-Ships Fast HF7548 47977000954