Exact Fit and Easy Replacement
This water panel filter fit my AprilAire humidifier perfectly and was easy to install. It feels like a quality replacement and helps keep the unit running smoothly. Good value and I’d purchase again. Read more
Departments

In Stock
In Stock
| Brand | Aprilaire |
|---|---|
| Special Feature | Porous Ceramic-Type Coating |
| Color | White |
| Capacity | 18 G/day |
| Operation Mode | Evaporative |
| brand | Aprilaire |
|---|---|
| special_feature | Porous Ceramic-Type Coating |
| color | White |
| operation_mode | Evaporative |
| product_dimensions | 10"D x 1.75"W x 13"H |
| item_weight | 1.75 pounds |
| room_type | Whole-House |
| model_name | Consumables Evaporative Water Panels |
| included_components | (2) #35 Humidifier Water Panels |
| shape | Rectangular |
| upc | 686720035029 |
| unit_count | 2 Count |
| manufacturer | Research Products Corporation |
| item_model_number | 35 02 |
| is_discontinued_by_manufacturer | No |
| date_first_available | September 8, 2008 |
| best_sellers_rank | #175 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Humidifier Accessories |












Product video 1
Customers say
Customers find the humidifier filter to be an exact replacement for their AprilAire models, with good value as it's cheaper than HVAC alternatives.
This water panel filter fit my AprilAire humidifier perfectly and was easy to install. It feels like a quality replacement and helps keep the unit running smoothly. Good value and I’d purchase again. Read more
have used the AprilAire 35 Water Panel Humidifier Filter Replacement for years in my Model 600 whole-house humidifier, and I genuinely couldn't be happier with the product. When the air gets dry during the Pacific Northwest winters, these panels are crucial for maintaining comfortable humidity levels and a healthy home environment. Perfect, Hassle-Free Fit: The replacement panel fits into my AprilAire unit perfectly. It slides right into the frame without any bending, forcing, or modification required. The design ensures maximum water absorption and evaporation efficiency, which is exactly what I need from a quality filter replacement. Superior Performance: This panel is incredibly effective at its job. When installed, my humidifier efficiently keeps my home at the ideal humidity level (around 40-45%). The material holds up well throughout the season, distributing water evenly and consistently to combat dry air that causes static, dry skin, and sore throats. Durable & Reliable: Unlike some cheaper generic brands I tried in the past (which fell apart quickly), the genuine AprilAire panels are built to last the full recommended replacement cycle (typically once per heating season). The durable honeycomb design maintains its structure even with constant water exposure. Genuine Quality Matters: Using genuine AprilAire parts gives me peace of mind that my whole-house system is operating exactly as the manufacturer intended. The quality control is evident—I’ve never received a defective unit. Maintaining indoor air quality is important to me, and the AprilAire 35 Water Panel makes that maintenance easy and effective. Highly recommended for anyone with a compatible AprilAire system! Read more
This fits more than AprilAire humidifiers. I've been using this water panel for several years on my Trane. They are all basically the same humidifier. If the measurements are good it'll work and they work well. They have a reasonable cost comparatively and come in a 2 pack. Read more
Not too expensive and effective Read more
Perfect fit and function. Read more
This filter was easy to install and fit perfectly without any hassle. Once in place, it noticeably improved the performance of the humidifier, keeping the air more comfortable during dry weather. The build feels sturdy and well‑made, and it holds up well through the season without breaking down. It’s a straightforward replacement part that does exactly what it should, making maintenance simple and effective. Read more
Perfect replacement. We still had our annual maintenance from a trained HVAC technician. The technician installed this filter for a fraction of the cost had we purchased the filter from the HVAC guy. Read more
This APRILAIRE 35 FILTER was super easy to install. It FIT OUR HUMIDIFIER On furnace PERFECTLY like the correct puzzle piece. On our furnace, we monitor that alerts us if any leaks are detected in or on furnace and when I was using these, we’ve never had a problem with leakages. Our humidity level is always in the correct range which is very important, especially during winters where it can get very dry but these filters definitely help maintain a consistent level of the proper humidity needed. Read more

