Danger Hazardous Chemicals Sign - 18 x 24 Inches on Heavy-Duty Aluminum valve-type_Solenoid Note: the disk must be

Note: the disk must be kept flat between tests and all tests on the disk must be run on the same day once it has had water added to it

This makes it easier for individuals to enjoy swimming without feeling exhausted afterward

042 inches

One capful per week will treat a 400 gallon spa

Danger Hazardous Chemicals Sign - 18 x 24 Inches on Heavy-Duty Aluminum valve-type_Solenoid Note: the disk must beThis Danger Hazardous Pool Chemicals aluminum sign measures 18 x 24 inches, is printed on heavy duty aluminum material with 4 inch lettering and is designed to prevent swimming in water with hazardous chemicals that may result in illness. Our danger signs indicate an immediately hazardous situation which, if not avoided, could result in serious illness. This is a lightweight, durable, and waterproof for indoor or outdoor use. This swimming pool and