Are these union nuts compatible with H-Series Millivolt and Electronic ED2 parts?
Hayward ED1/ED2 Union Nuts, Set of 2, HAXNUT1930
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Open Apr 16, 2026 - 11:00 AM
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Answer
Apr 16, 2026 - 11:00 AM
Yes, hayward union nut sets are compatible with H-Series Millivolt and Electronic ED2 heater parts. Millivolt systems use a small voltage generated by a thermocouple for ignition, while electronic systems use electrical ignition; having the right hayward union nut for both systems ensures a reliable fit regardless of your ignition type.
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Hayward ED1/ED2 Union Nuts, Set of 2, HAXNUT1930
" Hayward HAXNUT1930 Union Nut For H-Series Induced Draft; Electronic ED2 Style; Millivolt/Electronic ED1 Style Heaters and H150/H200/H210/H250/H300/H350
/H400 Millivolt/Electronic Ignition Pool and Spa/Hot Tub Heaters Used On Hayward H-Series Low Nox Heater Parts H-Series Milivolt And Elect...
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