Notice Diving Blocks for Swim Team Sign - 18 x 18 Inches on Styrene Plastic watts_100 This is a 50 pound

This is a 50 pound bag of calcium hardness increaser which will raise the total the calcium hardness in your swimming pool water

They also work on the Pentair Prowler 820/830 pool cleaners

oil free operation

Exposed battery terminals will corrode faster

Requires 240 volt electrical connections but must be hard wired and does not come with a plug

Notice Diving Blocks for Swim Team Sign - 18 x 18 Inches on Styrene Plastic watts_100 This is a 50 poundThis Notice Diving Blocks Are For Swim Team And Instructional Use Only Sign measures 18 x 18 inches, is printed on . 040 mil Styrene Plastic, and is designed for preventing unauthorized patrons from using the diving blocks. Our Notice signs indicate a statement of company policy as it relates to safety of personnel or property. This sign is lightweight, durable, and waterproof for indoor or outdoor use. This swimming pool and facility pool sign is