5" Hickenbottom Top, 1" Holes (12 HPF) | Agri Drain This 15" collar fits on

This 15" collar fits on the outside of Corrugated HDPE Drainage Pipe and holds the grate flush inside the collar

Designed to slide inside 18" I

this riser has 3 1/2' of 1" holes at 12 holes per foot for dependable inlet flow control

Flexible Fernco coupling for secure drainage pipe connections between 18" PVC and 18" PVC

5" Hickenbottom Top, 1" Holes (12 HPF) | Agri Drain This 15" collar fits onPlastic top section for 5" Hickenbottom intake applications. This version is the 12 HPF configuration with 1" holes and is used where a lower hole per foot opening pattern is needed in the top section. The Hickenbottom line is constructed of HDPE and meets ASTM F405 specifications.