MTD-600W | Matala® Self-Weighted Air Tube Diffusers
The MTD-300W and 600W are 12″ long and 24″ long. These are self-weighted 2″ diameter tubes with a rubber membrane wrapped around the outside. The MTD-300W and 600W come with 2 separate barbs which must be glued in place. Use regular PVC glue. The barb sizes include a 2 section barb with 5/16″ and 3/8″ size and a 1/2″ barb size.