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Spa Down / pH Down 2.5 lbs

Marsoni M251S
Sale price$14.99
Pay 4 payments of $3.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Spa Down / pH Down 2.5 lbsSpa Down lowers both pH and Alkalinity. With the use of spa test strips make certain to maintain your alkalinity between 80 to 150 ppm and your pH between 7. 2 to 7. 8 ppm. Important to use Spa Down whenever the pH level climbs above 7. 8 ppm! RECOMMENDED USE: Turn OFF all pumps and blowers. Add oz (1 tsp) for every 500 gallons. Run filtration pump for 30 minutes. Test and repeat procedure until the pH is at the recommended level. ***For best results
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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 554 reviews
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Verified Purchase
Huf
Fort Morgan, US
★★★★★ 5
Fast shipping, items as advertised.
Size: 11SMax-24Pack
Perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
Y
Verified Purchase
Your Name Here
Carnegie, US
★★★★★ 5
Works for my G30 Verge
Size: 11SMax-24Pack
Fit my G30 Verge. Works well and brought it back to life. Great value for the money!
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Reviewed in the United States on January 15, 2026
M
Verified Purchase
Melissa D Chaney
West Palm Beach, US
★★★★★ 5
Fits my Eufy
Size: 11SMax-24Pack
Parts fit my Eufy like they should. The side brush has held up nicely.
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Reviewed in the United States on April 26, 2026
C
Verified Purchase
Clyde
Grantham, US
★★★★★ 5
Bang for buck
Size: 11SMax-24Pack
You get a lot for the price. And it fits. Recommended. It is a little noisier than the original bit functions are the same
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Reviewed in the United States on January 10, 2026
M
Verified Purchase
Martini81
Boise, US
★★★★★ 5
Perfect Fit & Performance
Style: with Pre-Filter
These are an excellent, cost-effective alternative to OEM parts. The brushes and filters fit securely, restore full suction power, and hold up well to daily use. A must-have for maintaining a Eufy RoboVac without the high brand-name price tag.
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Reviewed in the United States on March 24, 2026

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