KUUL Replacement Pads for Port-A-Cool Cyclone 2000 - Set of 2 Pads, Model# PAD6019/22 Composed of Kraft paper impregnated with thermosetting resin and formed with cross-corrugated sheets Provides even water and air flow with no sagging, gapping or fouling problems Energy-efficient with consistent performance throughout a long life (3-5 years) Designed to be self-supportive and highly absorbent; debris cleans off easily with a garden hose Pads fit Port-A-Cool Cyclone 2000, Item# 15129