Plastic Econoline Ladder Tread Step - 17.25 Inch Width monitors_pH ORP Salt/TDS It works in conjunction with

It works in conjunction with alkalinity and pH

DEL60 filters

The tube works with Stenner 45

Any number of facilities can be monitored either by remote computer or by telephone

Plastic Econoline Ladder Tread Step - 17.25 Inch Width monitors_pH ORP Salt/TDS It works in conjunction withThis is a single S. R. Smith Econoline 17. 25 inch replacement ladder tread designed for 1. 90 inch rails. Made of high impact plastic, this step tread is recommended for residential ladders. Hardware is not included. Our ladder tread width measurements are from center to center. Please measure the center to center dimensions of your rails before ordering. Compatible hardware, if required, is item #AQ5006 (sold separately).