Don’t just take our word for it…

Boy, the temperature was VERY refreshing to swim in last night!
Covering at daytime, removing at night… That’s what I did yesterday, and temperature worked out great. Only increased a degree over the day, and I didn’t get the cover on until 11am… And that was with chiller off of course. Can leave chiller on, and [CoolGuard™ Ultra] can hold steady temperature with minimal use.
Boy, the temperature was VERY refreshing to swim in last night! Normally, even with the chiller on, it can’t compete with the temperature increase from the sun.

CoolGuard™ Ultra has exceeded my expectations in many ways
UPDATE FEBRUARY 2022:
I am coming up on almost 4 yrs of having the CoolGuard™ Ultra, it has been a great product, I installed it 5/23/2019.
With our desert climate and heat it has surpassed any cover I have had before in all regards.