Survey Marking Flags: 100-pack Red (2.5" x 3.5") | Agri Drain This 36" extension rod threads

This 36" extension rod threads onto the valve shaft and uses aluminum tube construction for simple

Designed to slide inside 4" I

This 8" collar fits on the outside of Corrugated HDPE Drainage Pipe and holds the grate flush inside the collar

This 36" tall section snaps together with other Hickenbottom components

Survey Marking Flags: 100-pack Red (2.5" x 3.5") | Agri Drain This 36" extension rod threadsWork faster and with more confidence in the field with these Survey Marking Flags: 100 pack Red (2. 5" x 3. 5"). Built on 21" steel wire, they are a practical choice for surveying, landscaping, underground utilities, sewers, tile lines, and field layouts.