Material:Aluminum.
X2661 Humidifier Pad 26 cm x 4 cm x 33 cm Aluminum for Lennox HCWB2 17 HCWP2 18
X2661 Replacement Humidifier Pad 26 cm x 4 cm x 33 cm for Lennox HCWB3-17
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
