• No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

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  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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  • No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

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Replacement x2661 Humidifier Filters

Replacement Water Panel for Whole House Humidifiers, 2-Pack
5
684 review(s)
◆
 
Average rating 4.8/5
5 stars
(584)
4 stars
(70)
3 stars
(10)
2 stars
(4)
1 star
(16)
$21.82
Case of 2 $43.63
In Stock
Ships in 24 hours
2 Pack Selected

BestAirPro Replacement For X2661 Humidifier Filter

  • Evaporator pad for whole house humidifiers
  • Fits many brands of large bypass and fan-powered humidifiers
  • Approximate dimensions 10" W X 13" H X 1-1/2"

Replacement for Lennox Healthy Climate X2661 Humidifier Water Pad, 2-Pack
5
42 review(s)
◆
 
Average rating 4.8/5
5 stars
(36)
4 stars
(4)
3 stars
(2)
2 stars
(0)
1 star
(0)
$24.32
Case of 2 $48.63
In Stock
Ships in 24 hours
2 Pack Selected

Aprilaire Replacement For X2661 Humidifier Filter

  • Replacement humidifier pad replaces part No. X2661
  • Fits large bypass and fan-powered Healthy Climate humidifiers
  • Approximate dimensions - 10" x 13" x 1-1/2"

Replacement for Lennox Healthy Climate X2661 Humidifier Water Pad, 4-Pack
5
42 review(s)
◆
 
Average rating 4.8/5
5 stars
(36)
4 stars
(4)
3 stars
(2)
2 stars
(0)
1 star
(0)
$21.19
Case of 4 $84.75
In Stock
Ships in 24 hours
4 Pack Selected

Aprilaire Replacement For X2661 Humidifier Filter

  • Replacement humidifier pad replaces part No. X2661
  • Fits large bypass and fan-powered Healthy Climate humidifiers
  • Approximate dimensions - 10" x 13" x 1-1/2"

TrustScore 14,174 reviews