Aprilaire 45 Replacement Water Pad

• Fits Space-Gard/Aprilaire furnace humidifier models 400, 400A, and 400M.
• Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).
• Measures approximately 9 7/8" x 12 7/8" x 1 3/4".
• 2 wick filters per pack.
• Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

This replacement filter fits the Aprilaire 400 humidifier and is cheaper (including shipping) than purchasing from aprilaire's website (even though they have free shipping).

That being said, this replacement filter is grossly overpriced for what it is. Clearly a profit center for Aprilaire.

I have ordered this part before and have had no issues with this seller. Product arrived quickly.