Plastic Sloping Ladder Tread Step With Hardware - 19.75 Inch Width ad-label_Replacement Parts The Rola-Chem 554501 Digital pH

The Rola-Chem 554501 Digital pH Liquid Acid/ORP Liquid Chlorine Controller Package includes one 38 GPD and one 12 GPD Pro Series Peristaltic Pump for swimming pools up to 127

A bright LCD display shows ORP and/or pH readings

The Spa Vac is so simple to use

This kit is used to test the acidity in your hydrochloric or muriatic acid solutions

Life rings last much longer when protected while not in use

Plastic Sloping Ladder Tread Step With Hardware - 19.75 Inch Width ad-label_Replacement Parts The Rola-Chem 554501 Digital pHThis is a Spectrum sloping ladder tread used on their lifeguard chairs and the center measurement is 19 3 4 inches. Made of molded ABS plastic, each tread includes hardware for installation. Our ladder tread width measurements are from center to center. Please measure the center to center dimensions of your rails before ordering.