Blue Square Eclipse™ 501003GR Gray Main Drain Debris Catcher. Blue Square is changing the way the industry looks at drains and debris removal systems! The patented Eclipse™ Drain virtually disappears into the surface of your pool. With a unique, sleek, circular design, the Eclipse™ Drain virtually disappears into the floor of your pool by blending into any pool surface. The revolutionary circular channel provides maximum flow and efficiently removes debris. Use in conjunction with the Blue Square In-Floor System and Abyss™ Canister to maximize performance!