Focus Multi Function Shock - 10oz. Bags - 30 Pack YGroup_space Dimensions: 5 1/8" X 3"

Dimensions: 5 1/8" X 3"

it flips over when the chlorine is empty and needs to be replaced

There are many reasons for black algae in your pool water: frequent heavy rains

Prevent Drowning Sign 12

The simple roll-up and down design (similar to a garage door) eliminates the need to flip up or spin the outer treads of the ladder to restrict access

Focus Multi Function Shock - 10oz. Bags - 30 Pack YGroup_space Dimensions: 5 1/8" X 3"Focus Multi Purpose Shock is neccessary at the beginning of the season, during hot weather, and following heavy rain or windstorms. Focus Multi Purpose Shock is a highly effective sanitizer that kills harmful bacteria, aids in algae control and helps keep the pool clean and clear. It . Focus Multi Purpose Shock is a powerful sanitizer that will provide you with the results you need to create a healthy swimming environment.