TheAnti-Damming Risers for the Bird Jolt Flat Track systemcan be used two ways: to lift track off the surface to prevent water from damming behind it, or to install Bird Jolt Flat Track on a surface that is hard to glue to, like wood. The Anti-Damming Risers have pre-drilled holes in the base, the track snaps right into the riser.

• Allows water to flow underneath track
• Can be used on surfaces where gluing is not an option
• Should be placed every 3
• Gray