Plastic Sloping Top Drilled Ladder Tread - 17.25 Width filter-length_13 3/16 inches The Chemtrol 250 is easy

The Chemtrol 250 is easy to install and simple to use

adjustable volume control

The kit case also has two tabs on each side with holes for mounting it to the wall

The Tri-Lock strainer cover design seals with less than a quarter turn

The Badu Pro E Series saves you time and money while making your life simpler

Plastic Sloping Top Drilled Ladder Tread - 17.25 Width filter-length_13 3/16 inches The Chemtrol 250 is easyThis is Paragon's sloping plastic top drilled ladder tread with a center measurement of 17. 25 inches. It has 2 extra holes on the top ladder step which would secure an additional attachment. Hardware is included. Our ladder tread width measurements are from center to center. Please measure the center to center dimensions of your rails before ordering.