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Model hub

AprilAire 216 MERV 16 whole-house media filter

AprilAire 216 is the MERV 16 sister to 210 (MERV 11) and 213 (MERV 13) for AprilAire whole-house air purifiers labeled 20×25×4. Official actual size is the same: 20.6 × 26.63 × 4. It is not a 1″ furnace return panel, not a Honeywell FC100A1037 drop-in without checking depth and face, not a humidifier water panel, and not ductless mini-split mesh. Generic Honeywell-class cuts: 20x25x4 size page.

Quick specs (verified AprilAire shop)

Source: AprilAire shop product page for model 216 (accessed 19 Sep 2026). Height × width × depth as AprilAire prints them. Unlike most 1-inch furnace panels, this actual face is larger than the nominal 20×25 — do not order a Honeywell ~19.88 × 24.88 × 4.38 cartridge for an AprilAire cabinet.

Which cabinets they fit

AprilAire lists 216 for whole-house air purifiers 1210, 1620, 2210, 2216, 3210, and 4200. With upgrade kit 1213, it also fits AprilAire / Space-Gard 2120 and 2200. Official pages also list UV12 and UV22. Check the label on the cabinet door before you order.

Same physical cartridge family as 210 / 213 — the part number picks the MERV band, not a different cabinet size. Related SKUs you may see in search (not this page’s buy table): 213CBN (MERV 13 + carbon) and the newer UK213 TriPure kit that replaces 213 with different rails and a different published actual (~21.44 × 27 × 3.68). If your box says UK213, do not assume a classic 216 / 213 / 210 is the same cartridge.

216 vs 210 vs 213 (same size, different MERV)

All three print the same nominal and actual measurements on AprilAire’s shop. MERV is ASHRAE 52.2; higher MERV captures a larger share of smaller particles and adds resistance. A media MERV 16 is not HEPA. We do not claim health outcomes. Confirm the system can take MERV 16 pressure drop before upgrading from 210 or 213 — ask an HVAC technician if unsure. MERV context: MERV guide. Pets / allergies shopping notes: pets-allergies. Change-interval context: how often.

210 / 213 intervals and dims from AprilAire shop (cited on 210 vs 213). 216 interval and dims from AprilAire shop product specs, accessed 19 Sep 2026.

Not a Honeywell 20x25x4 swap

• AprilAire 216 (and 210 / 213) — published actual 20.6 × 26.63 × 4 for AprilAire / Space-Gard cabinets listed above.
• Honeywell FC100A1037 (F100/F200 media) — published actual about 19.88 × 24.88 × 4.38. Different face size and depth. Model page: FC100A1037.
• Nordic Pure “20x25x4” — often about 19.5 × 24.5 × 3.63 — again a different cut. Generic size hub: 20x25x4.

If the old filter is stamped AprilAire 216, order 216 (or confirm the cabinet still uses classic rails, not UK213). If the old filter is a Honeywell FC100A1037, use that model page — do not force an AprilAire cartridge into a Honeywell cabinet without measuring.

AprilAire water panels (humidifier pads 10 / 12 / 35 / 45) are a different product from media filters 210 / 213 / 216. Pad guide: humidifier pad sizes. Measure method: how to measure.

What NOT to do

• Do not force a Honeywell FC100 / Nordic Pure ~3.63″ cut into an AprilAire Interlock Rail cabinet built for 20.6 × 26.63 × 4.
• Do not substitute a 1″ flat panel (20x25x1) for a 4″ media cartridge.
• Do not buy a humidifier pad or mini-split mesh for this cabinet: humidifier pads · mini-split filters.
• Do not assume MERV 16 is always better — higher MERV adds pressure drop; get HVAC tech OK if upgrading from 210 / 213.
• Do not invent SKUs or dimensions — match the printed model on the old filter or the cabinet door.

AprilAire shop pack prices verified 19 Sep 2026

Live featured variant prices from AprilAire shop product JSON tonight. Per-filter math is pack price ÷ count, rounded to the cent. Shipping and subscribe-and-save will move cart totals. Amazon and third-party “compatible” listings are omitted until we verify a live buy-box on this page.

Verified 19 Sep 2026 ET from public Shopify product JSON: 1-pack variant price 12299 cents ($122.99), available; 2-pack variant price 22599 cents ($225.99), available: false. Do not scrape Filterbuy charts.

Where to look next

• OEM — AprilAire shop — 216 MERV 16
• Sister AprilAire media (MERV 11 / 13) — AprilAire 210 vs 213 (includes dated pack tables for 210 / 213)
• Related FilterBySize pages — 20x25x4 · Honeywell FC100A1037 · MERV · How often · Pets / allergies · How to measure · Humidifier pads · Mini-split filters

No ranking. Stock and price change. Match the model number on the old filter or the cabinet door. Full policy: disclosure.