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- Genuine Aprilaire product
- Product of the USA
- Used in various Aprilaire models
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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.