7" Tall x 11 1/4" PVC Bottom Stoplog Board | Agri Drain It fits outlet ODs from

It fits outlet ODs from 11

It removes solids down to 1/16" to help extend septic system life and includes one EF-4 filter plus one inlet/outlet T-baffle in a ready-to-install combo

it works with smoothwall pipe or Corrugated HDPE Drainage Pipe and uses durable 1/16" gum rubber with a wooden frame

Zinc dichromate-plated steel resists corrosion and installs inside 30" I

7" Tall x 11 1/4" PVC Bottom Stoplog Board | Agri Drain It fits outlet ODs fromPVC bottom stoplog board with stainless steel hooks and a thicker bottom o ring. Built for Inline Water Level Control Structures, this 7" tall x 11 1 4" wide bottom board installs first in the track to support sealing and consistent water control.