High Efficiency Rigid Media The Aerocool® evaporative cooler beats the others cold — it is more efficient and less costly to operate. In fact, it is up to 13% more efficient than conventional coolers. Rigid media material provides cooler air and can last up to 10 times longer than old style aspen pads. Peblar XT Protective Powder Coat Our exclusive Peblar XT surface preparation is the highest quality architectural grade finish used in the industry. This durable multi-layer bonded treatment protects your cooler against corrosion and assures years of reliable service. Click Here to learn how Phoenix Evaporative Coolers are made with the highest quality-https://www.youtube.com/watch?v=y8LP71WbklI