CLICK HERE TO SEE ALL GENERALAIRE PARTS Generalaire 1099-20 Evaporator Pad Features: The aluminum evaporator material is enclosed in a heavy wire frame and channeling.  Super absorbent coating for maximum water distribution and increased humidity output. Specifications: Size: 14 1/4"W x 12"H For use with these models: Generalaire: 1099 1099L 1099LH 1099R