Hayward H-Series High Altitude Kit - FDXLHAK1931 chemistry monitor Control by RPM or GPM

Control by RPM or GPM

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Hayward H-Series High Altitude Kit - FDXLHAK1931 chemistry monitor Control by RPM or GPMProduct Description Hayward H Series High Altitude Kit for H150 H500. Adjusts the heater to perform efficiently in lower oxygen environments at higher elevations (ie. Alberta). Hayward Item Code: FDXLHAK1931 Features Genuine Hayward H Series High Altitude Kit. Compatible with ALL Hayward Forced Draft Heaters: H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H500FDN, and H500FDP. Compatible