- Genuine Hayward Forced Draft H-Series Replacement Burner Orifice Kit (NA).
- Compatible with ALL Hayward Forced Draft Heaters:
- H150FDN, H200FDN, H250FDN, H300FDN, H350FDN, and H400FDN.
- Compatible with ALL Hayward ASME Forced Draft Heaters:
- H250FDNASME, and H400FDNASME.
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