Signature Series 400 Pond Skimmer Weir Door

Signature Series 400 Pond Skimmer Weir Door. The Weir Door – Signature Series™ 400 / Classic Skimmers are designed for use in large ponds and water gardens. They are made of durable materials and are easy to install. The weir allows for easy skimming of leaves and debris from the pond surface, while the built-in filter keeps the water clean and clear. The skimmers also include a backflow preventer to keep your pond safe from flooding.