Champion CHPS55 55 gal 12.5% Pool Shock - CPDI (Champion) is dedicated to providing the highest quality products at competitive prices and delivering exceptional customer satisfaction while maintaining focus on minimizing the impact to the environment. CPDI (Champion) strives to be a leader in the industry. They maintain a safe work environment, partner with carefully-selected vendors, and promote a team atmosphere where new ideas from all employees are evaluated for use by the organization.