Signature Series 6.0 Pond Skimmer Weir 6″

Signature Series 6.0 Pond Skimmer Weir 6″. The Weir Door is a replacement part for the Aquascape Signature Series Pond Skimmer. The weir door is a small trap door in the front of the skimmer filter. The door uses surface tension to drag water into the skimmer to collect floating pond debris inside the basket and net where it can be easily removed. Select the right weir door for your existing pond skimmer.