Material:Aluminum.
Aluminum Humidifier Pad X2661 2 Pack for Lennox HCWB3 17 HCWB2 17 HCWP2 18
Replacement Humidifier Pad X2661 2 Pack Aluminum Filter for HCWP2 18 HCWB2 17
2 Pack X2661 Aluminum Humidifier Filter for Healthy Climate HCWP2 18 HCWB2 17
X2661 2 Pack Humidifier Filter Aluminum Pad for Healthy Climate HCWB3-17 Models
