Aprilaire 4793 Maintenance Kit for 550
Tune up kit for Aprilaire 4793 550 series humidifiers (part 4793). this tune-up kit Works for whole house small bypass humidifiers - models 550, 550a and 558. This kit contains everything you need to maintain your Aprilaire humidifier. the kit includes: 10 water panel (qty) 4226 - feed tube assembly with 4184 nozzle (nozzle snaps into distribution Tray) 4231 - yellow orifice (comes nested in feed tube) 4004 - inline strainer (included in feed tube envelope) compression nut and ferule (included in feed tube envelope) 4217- scale control insert 4218- water distribution Tray 4184 - nozzle.
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