Chlorine Dispenser Replacement P05345 P03821 for Lay Z Spa Hot Tub - Chemical Chlorine Dispenser System Replacement Part for Spa Pool 1. Wide Compatibility: With part numbers P05345 and P03821, this chemical chlorine dispenser system replacement part is perfectly compatible with Lay Z Spa pools. 2. Water Purification: The chemical chlorine dispenser helps achieve even distribution of chlorine in the pool water, effectively purifying the water and keeping it clean. 3. Durable ABS Material: Made from high-quality ABS material, this chemical chlorine dispenser replacement part offers durability and reliability for long-lasting use. 4. Easy Installation: Designed for simple installation, users can easily replace and install this chemical chlorine dispenser part, saving time and effort. 5. Regular Maintenance: Regular replacement of the chemical chlorine dispenser parts can help maintain optimal performance and extend the lifespan of your spa hot tub water treatment system.