Helix Life Support Pond Skimmer Weir Block Plates Type:Permanent Block Plate made of 1" thick high-quality

made of 1" thick high-quality wood

5" — FSM460-1/2

10mm Barb 40dB 4

helping all biological processes and creating a more stable environment

Always make sure that check valves are installed in the correct direction

Helix Life Support Pond Skimmer Weir Block Plates Type:Permanent Block Plate made of 1" thick high-qualityHelix Weir Block Plates can be used to isolate the Helix pond skimmer from the rest of the pond. Which option you need will depend on whether you want a permanent or removable block plate. The Removable Weir Block Plate allows you to temporarily block the mouth of the skimmer so that the skimmer can be emptied without lowering the pond's water level. The block plate has no gaskets, so it won't keep out all water indefinitely, but it is a quick and