GP800881 Kohler Pressure Balance Cartridge Protect the warranty on Kohler products, always look for the Kohler GENUINE Parts logo. Kohler GENUINE Parts are designed by Kohler engineers to maintain original product performance and promote product longevity. Kohler GENUINE Part One-piece with integrated double seals Replacement cartridge for Kohler K-8304 pressure balance valve Seize resistant in aggressive water conditions Made with premium materials for enhanced durability