- Provides stability for auto toilet systems with frost resistance and leak protection. - Made from rubber and metal; this water module assembly offers easy installation and long service life across a range of car models. - Ideal for auto enthusiasts, travelers, and maintenance staff who want to replace or upgrade their vehicle toilet facilities for improved performance. - Ensures smooth operation of toilet systems on all types of driving, enhancing comfort during your travels. Use scenarios: - Replacing a worn WC valve during a road trip to restore toilet function in a passenger car, SUV, or camper. - In frost-prone climates or winter trips, the frost-resistant design helps prevent freezing and leakage. - Maintenance teams upgrading or replacing old toilet modules on fleet vehicles to improve reliability and reduce downtime.