3M Safety Walk Edge Sealing Compound fitting-connection_Female The distance between the front

The distance between the front (pool) rail and back (anchor) rail is 27 inches and the overall outside diameter of the rail tubing is 1

Tubing is standard at 1

This model 320 features an external fine control valve that lets you adjust the feed rate to meet specific pool or spa requirements

This ceramic pool depth marker is printed with 1/2 and has a smooth surface

3M Safety Walk Edge Sealing Compound fitting-connection_Female The distance between the frontUse our Safety Walk Edge Sealer to seal edges of 3M depth markers for longer lasting wear. Will seal up to 100 linear feet. Our Safety Walk Edge Sealer is also available as part of our 3M Depth Marker installation kit.