Evaporative Cooler Covers now available in a variety of different sizes from Nordic Pure. Covering your swamp cooler is probably the single most important step you can take to protect and extend the life of your air unit when not in use! The down discharge cooler cover is stronger and lighter than canvas, made from 300D x 300D polyester fabric, with an extra strong draw rope and brass grommets down one side for easy installation. The seams are double stitched for added durability and the fabric is breathable so no ventilation panels required, reducing wind flap. You may also be able to use this as an AC cover. Measure and make sure your electrical lines and copper tubing is at the bottom or corner of the air conditioner unit. The covers are only to be used when you are NOT using your unit! Make sure your unit is turned off before putting your Cover on. Ã‚Â· Gray 100% polyester 300Dx300D material – Easy to put on and take off Ã‚Â· Breathable material prevents damaging moisture buildup inside cooler Ã‚Â· Double stitched seams, strong draw string and brass grommets Ã‚Â· Reduce home heat loss during winter months Ã‚Â· Material will not shrink The 37x37x45 down draft evaporation cooler cover will protect your cooler unit and internal parts from excessive moisture from rain, sleet, snow, ice and condensation from humidity which can cause rust. It will also protect the unit from falling leaves and sticks, dust, dirt and other flying debris which can affect the performance of your unit. Fading from the UV rays of the sun which can make your Swampcooler appear old and worn out can also be prevented with the use of the Evaporative Cooler Cover. Additional tie-down cord may be necessary in areas experiencing high velocity winds.