The MC8500UL Pump is designed for use in MasterCool single inlet coolers made by AdobeAir as well as other residential, 115-Volt coolers rated from 4,000 to 8,500 CFM of air delivery. It features a low level design ensuring normal operation even if the cooler's water level drops to as low as 1/2 in. and is UL classified for safety. The powerful 2 coil concentric motor delivers 360 Gal. per hour at a head height of one foot.
Can be used with all brands of roof-top and window-mount coolers
Motor has thermal overload protection and a flame-retardant housing for safety
Grounded plug for quick and secure connection to the cooler's junction box
Includes mesh pump basket, mounting bracket, and hose extension for older MasterCool coolers that might require additional pump hose length
A: This pump will work with most window evaporative coolers. Check cooler manual to be sure.
by|Jul 26, 2022
Q:I have one of these . It died at 6 wks. Is there a warranty? Getting new one in morn.
by|Jul 13, 2021
2 Answers
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A: Unsure as to warranty, but I've burned through four of these in one season. Not sure if build quality has dropped?
by|Jul 14, 2021
A: Yes, this concentric pump is warranted for 1 year from the date of sale. Warranty is void if pump is abused, altered, water damaged (e.g. white calcification), improperly installed, or stored in a cooler winterized with a plastic cooler cover. Please bring our phone number, 800-350-3425, and the pump to your local Home Depot store and have them call us to verify the pump condition and to authorize replacement.
by|Jul 13, 2021
Q:How do you adjust the CFM?
by|Mar 29, 2021
1 Answer
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A: This pump was designed as a replacement for Mastercool / Arctic Circle coolers, with a water flow of 360 gallons per hour (gph), using 8" to 12" rigid media. There is no way to adjust the waterflow on the pump itself. You can use a restrictor clamp to pinch the line to lessen the water flow. Take a look at the cfm of your cooler and there may be a pump more suitable for your application, such as the 1150 pump for a 5500 cfm cooler with a gph of 240. It all depends on the cfm of your cooler.
by|Mar 29, 2021
Q:Is this a good pump to use to make a diy swamp cooler?
by|May 19, 2020
2 Answers
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A: Very easy install, kit comes with its own filter even.
by|Jul 24, 2020
A: Call Dial Manufacturing at 800-350-3425. Need more info.
by|May 20, 2020
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May 25, 2023
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Verified Purchase
May 25, 2023
Perfect fit works great....
Perfect fit works great.
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Verified Purchase
May 10, 2023
The DIAL MC8500UL 1/60 HP Evaporative Cooler Pump was easy...
The DIAL MC8500UL 1/60 HP Evaporative Cooler Pump was easy to install and came with the necessary filter basket for the inlet. It replaced the pump that that came with cooler that crapped out after less than two months of use. Hopefully this one will last longer that the manufacturer supplied pump. The whole cooler seems cheaper made that one of the same brand it replaced.
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The IND15000 MaxCool Pump is designed forThe IND15000 MaxCool Pump is designed for use in 115-Volt industrial and commercial evaporative coolers rated up to 15,000 CFM of air delivery. It is UL classified for safety and features a low level design ensuring normal operation even if the cooler's water level drops to as low as 1/2 inch. The powerful 2 coil concentric motor delivers 505 Gal. per hour at a head height of 1 foot.View Full Product Description
UL7500 115-Volt Premium Evaporative Cooler Pump
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UL11000 230-Volt Premium Evaporative Cooler Pump
UL11000 230-Volt premium evaporative coolerUL11000 230-Volt premium evaporative cooler pump is UL classified for safety and designed for use in 230-Volt evaporative coolers rated up to 11,000 CFM of air delivery. This pump also features a low-level design to ensure normal operation even if the cooler's water level drops to as low as 1/2 inch. The powerful dual coil concentric motor pumps 420 GPH at a head height of 1 foot. Due to its voltage and plug configuration, this pump is typically not used in residential coolers.View Full Product Description