Portacool PAD6048/G Replacement Media Pad for 36-Inch Portacool Portable Evaporative Coolers Replacement media for Portacool 36-Inch units 6-Inch high efficiency rigid cellulose pads for Portacool evaporative coolers Impregnated with thermosetting resin and formed with cross-corrugated sheets Will help your Portacool cooler run at high efficiency Easy replacement