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The Lennox LX18 is the correct replacement air filter for the following humidifier models:

• Lennox WS1-18
• Lennox WS1-18-1
• Lennox WS1-18-2

The Lennox Foam Humidifier Filter LX18 is a replacement foam filter for the Lennox WSI-18 furnace mount humidifier. This two pack of Lennox foam prefilters measures 14" x 12 3/4" x 1/2" and reduces mineral pollutants within your WS1-18 humidifier model.

Lennox Foam Humidifier Filter 2pk LX18 specifications:

• Part number LX18
• Dimensions: 14" x 12 3/4' x 1/2"
• Compatible with the WS1-18 series

Lennox Foam Humidifier Filter - Lennox LX18 Product Reviews :

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