This best selling chlorine kit is ideal for every hot tub owner looking for products for hot tub start up and maintenance. Products come in smaller amounts allowing the user to discover which treatments work best for their hot tub before purchasing the full sized versions of those products. The kit also includes an instructional DVD explaining all the products and their specific uses. Whether you are looking for a new sanitation system or just need the essentials for hot tub maintenance, this kit will contain everything you need.