This display board is designed to use with Hayward Universal H-Series Low NOx Heater model H350FDP, H350FDP also compatible with Hayward Universal H-Series Low NOx induced draft heater models H250IDL2, H350IDL2, H400IDL2. Weighs 14-1/2-pound.

Product Features

• Same water velocity through all tubes for faster heating
• Common union for installation or service, adapts to larger plumbing recommended for greater efficiencies
• Low NOx emissions meets clean air quality standards.
• Up to 18% savings by reducing pump run-time. 2inx 2 1/2inch CPVC Union Plumbing Connections
• Excellent salt water and chemical corrosion resistance. For model H350FDP and fits induced draft heater models H250IDL2, H350IDL2, and H400IDL2