Universal Ladder Tread - 18 Inch Rail Width pipe-size_2" Additional tests in partially filled

Additional tests in partially filled disks must be used within 4 hours of the first test

It operates on one 9 volt battery

Seven grids are required

Elevation on this model is to 2

After repairing the pool

Universal Ladder Tread - 18 Inch Rail Width pipe-size_2" Additional tests in partially filledThis is a universal 18 inch wide commercial ladder tread for all types of swimming pool ladders. It is constructed of one inch thick solid marine grade plastic for strength and durability. These pool ladder steps include a non skid surface for improved swimmer safety. They are designed to work with standard 1. 90 inch diameter pool rails. The 18 inch measurement is the distance between the pool ladder rails. Be sure to measure the distance between the