Aprilaire Upgrade & Maintenance Kits
Aprilaire upgrade kits update older Aprilaire media air cleaners, such as the 2410 or 2210, with conversion rails or a frame and a current MERV 11 or MERV 13 filter. Annual maintenance kits cover Aprilaire 350, 360, 500, 550, 560, 600 and 700 humidifiers. Find the right kit by your unit's model number.
Browse all upgrade and maintenance kits, or see Aprilaire furnace filters and Aprilaire humidifier pads.
Aprilaire kit guide: find your kit by unit model ▾
Which upgrade kit fits my air cleaner?
Find the model number on your air cleaner's label, then pick the kit listed for it. Each kit includes the 3F filter with the same number, such as the 3F211 in the UK211; check the MERV rating in the listing.
| Kit | For Aprilaire units | Cabinet size | Filter included |
|---|---|---|---|
| UK111 / UK113 | 1110 | 16x20 | 3F111 / 3F113 |
| UK211 / UK213 | 1210, 2210, 2216, 3210, 4200 | 20x25 | 3F211 / 3F213 |
| UK311 / UK313 | 1310, 2310, 3310, 4300 | 20x20 | 3F311 / 3F313 |
| UK411 / UK413 | 1410, 2410, 2416, 3410, 4400 | 16x25 | 3F411 / 3F413 |
| UK511 / UK513 | 1510, 2516 | 31x28 | 3F511 / 3F513 |
| UK911 / UK913 | 1910 | 25x20 | 3F911 / 3F913 |
| U1213 | 2120, 2200 | 20x25 | 3F213 + frame and door seal |
| U1413 | 2140, 2400 | 16x25 | 3F413 + frame and door seal |
Annual humidifier maintenance kits
Choose the kit for your humidifier: 4785 for the 350 and 360, 4792 for the 500, 4793 for the 550, 4837 for the 560, 4839 for the 600 and 4750 for the 700. Replace the water panel at least once each heating season, or more often with hard water.
