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HTH® Pool Care Shock 5.5 oz

Marsoni M251S
Sale price$34.99
Pay 4 payments of $8.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
HTH® Pool Care Shock 5.5 ozShock treat, sanitize, clarify and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy to use product. Multi use pool shock with Cal Hypo Use weekly to solve 90% of pool water problems Fast acting and fast dissolving Visibly brilliant sparkle This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock. Compatible with all swimming pools This product is
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 88 reviews
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A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Fits
Fits a 15 Subaru Forester, working great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
B
Verified Purchase
Bob
Charlottesville, US
★★★★★ 5
Good Quality, Good Price for a Subaru Replacement Air Filter
Look like a great name brand filter. Not a bad price for a Subaru (2013) replacement. I will buy again if available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
L
Verified Purchase
Lance Low
West Palm Beach, US
★★★★★ 5
It works!
Fitment was great on my 2014 Subaru Crosstrek. Construction was solid and great that I don’t have to worry about changing it for 18,000 miles. Would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
T
Verified Purchase
Thomas M. Cook
Waukegan, US
★★★★★ 5
As described, great quality
Perfect fit and function for 2018 Subaru Outback
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Reviewed in the United States on January 15, 2026
M
Verified Purchase
Michael Mueller
New York, US
★★★★★ 4
Good product
This is a long life filter without having to oil and wash like a lifetime k&n.
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Reviewed in the United States on December 18, 2025

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