Upgrade your pool heater with the FD Heater O-Ring Replacement Kit, designed specifically for Hayward Universal H-Series Low NOx Pool Heaters. This essential maintenance kit ensures a leak-proof seal and optimal performance for models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, and H400FDP. Easy to install and built for durability, this O-Ring kit helps maintain the efficiency and longevity of your pool heater.

• Compatible Models: Fits Hayward Universal H-Series Low NOx Pool Heater models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, and H400FDP.
• Leak-Proof Seal: Ensures a tight, secure seal to prevent leaks and maintain heater efficiency.
• Durable Construction: Made from high-quality materials for long-lasting performance.
• Easy Installation: Simple to replace, making maintenance hassle-free.
• Optimal Performance: Helps your pool heater run smoothly and extend its lifespan.