Plastic High-Impact Ladder Tread Step - 18 Inch Width Universal horsepower_1 HP and it boasts an FMVSS

and it boasts an FMVSS 302 flammability rating

and Cyanuric Acid tablets

They feature a dial handle for easy flow regulation and visual indication of valve setting

Tube to Pipe

This is a Taylor FAS-DPD Titrating Reagent (Chlorine)

Plastic High-Impact Ladder Tread Step - 18 Inch Width Universal horsepower_1 HP and it boasts an FMVSSThis high impact replacement vertical ladder tread has an 18 inch centerline and can be universally fitted on both 1. 5 and 1. 9 inch O. D. rails. This ladder tread includes adapters that allow the tread to be used with either 1. 5 or 1. 9 inch O. D. tube. The tread has vertical ribs to allow flow and help prevent corrosion. These treads are used on commercial pool ladders and diving towers. The tread is 4 inches deep and has a total length of 19 7 8