Home › Parts › AprilAire Water Panel #45
AprilAire Water Panel #45
OEM part number(s): 45, 45RP · Made by AprilAire · Whole-house water panel / pad
Lowest verified price: $17.90 — 1 panel, genuine AprilAire 45 at eBay (Buy It Now listing). eBay listing shipping terms (marketplace; verify before relying). Checked 2026-11-11.
Buy on Amazon — 45Amazon search for the exact part number (no single listing is endorsed). Amazon price is shown on Amazon; we do not quote it here.
Verified prices (checked 2026-11-11)
| Option | Price | Store & shipping |
|---|---|---|
| Genuine (OEM) 1 panel, genuine AprilAire 45 | $17.90 | eBay (Buy It Now listing) eBay listing shipping terms (marketplace; verify before relying) · Checked 2026-11-11 · source |
| Genuine (OEM) 1 panel, genuine AprilAire 45 | $26.99 | DiscountFilters Free shipping on orders $70+ at DiscountFilters; a fee applies below that · Checked 2026-11-11 · source |
Genuine prices only: the eBay figure is a marketplace Buy It Now listing, and no established-retailer aftermarket price was captured this pass.
How to read this: the lowest verified price above is the headline even when it is not Amazon. Amazon is the buy button because it is this site's affiliate route; its price is not quoted because Amazon blocks automated price reads.
Exact fit — models that take this part
AprilAire 4000, AprilAire 5000, AprilAire 6000
How many per change: Genuine retail 45RP is a 2-pack; watch pack counts when comparing prices.
Specifications
| Replacement interval | Replace every year or every 6 months (AprilAire guidance). |
|---|---|
| Dimensions | 10 × 13 × 1.75 in (DiscountFilters) |
| Treatment | Metal mesh with clay coating; the #45 is the pad used in Aprilaire 5000/6000 electronic air cleaners. |
Equivalents and cross-references
| Brand | Part number | Note |
|---|---|---|
| BestAir | A45 | BestAir aftermarket equivalent (fit verified; no price captured this pass). |
| Honeywell | HC22E1003 | Honeywell lists HC22E1003 as its replacement for the AprilAire 45 — cross-checked against the HC22E record. |
| Orzechowski | H1071 | Aftermarket equivalent. |
Sources
- https://www.aprilaire.com/parts-and-accessories/aprilaire-45-water-panel
- https://www.discountfilters.com/aprilaire-humidifier-pads/aprilaire-45/p170771/
- https://www.ebay.com/itm/226920640624
Full record, including descriptor data for every model, is in the open dataset: /data/parts.json.