Evaporative Cooler Accessories

Evaporative cooler accessories help boost cooling performance, extend unit life, and reduce maintenance for residential, commercial, and portable swamp coolers. Explore replacement pads/media (aspen and rigid cellulose), pumps, motors, belts, pulleys, float valves, water distribution lines, bleed-off kits and purge pumps, thermostats and remote controls, inlet filters, duct transitions, casters, brackets, drain kits, and weatherproof winter covers. Find parts for down-draft and side-draft units, with options that fit most major brands and models.

Choosing the right accessory starts with sizing and water quality. Measure pad dimensions (thickness × height × width) and match media style to your needs: rigid cellulose offers longer life and higher cooling efficiency; aspen pads cost less and deliver softer airflow. Match pump capacity to your cooler’s CFM and media height; use manufacturer charts to pick the correct GPH. Select motors by horsepower, voltage, and shaft size, and pair belts and pulleys to maintain proper blower speed for quieter, more efficient operation. A quality float valve stabilizes water level, while distribution kits ensure even pad wetting to prevent dry spots and hot air bypass.

Hard water calls for a bleed-off kit or purge pump to limit mineral buildup, odors, and scale on pads and sumps—saving water and keeping airflow strong. Add bacteriostatic treatments or cleaning tablets only as recommended by your unit maker. Gaskets and panel hardware reduce leaks and vibration, and inlet filters or pre-filters help keep dust out of media. For portable coolers, casters improve mobility and cord management keeps setups tidy.

Plan seasonal care with maintenance kits: inspect pads each cooling season, replace as needed, clean the sump, flush lines, verify float level, check belt tension, and lubricate bearings if applicable. Before winter, drain the unit, install an automatic drain valve or manual drain cap, disconnect water, and fit a UV-resistant cover. The right evaporative cooler accessories deliver cooler air, lower energy use, and fewer service interruptions.