SpaGuard

SpaGuard Enhanced Shock 2 lb 1 Pack

624+ bought in the past month

$21.99$26.99

About this item

  • Multipurpose shock with four functions: shocks, clarifies, flocculent and pH buffer
  • Compatible with chlorinated or brominated spas or hot tubs and those using ozone or ionization systems
  • Restores water sparkle, removes unpleasant odors
  • Multi-Purpose Chlorinated Shock
$21.99
Was $26.99Save $5.00

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Delivery β€” Friday 10 Apr – 16 Apr
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Product details

BrandSpaGuard
Item Weight2 Pounds
Item FormGranular
Product BenefitsOxidizes to remove undesirable compounds, restores water clarity and sparkle, removes unpleasant odors, compatible with various sanitizing systems See more
UPC017541644969 017541422307

Technical specifications

brandSpaGuard
item_weight2 pounds
item_formGranular
product_benefitsOxidizes to remove undesirable compounds, restores water clarity and sparkle, removes unpleasant odors, compatible with various sanitizing systems
upc017541644969 017541422307
number_of_items1
unit_count32.0 Ounce
product_dimensions8 x 3 x 3 inches
manufacturerBioGuard
item_model_numberBIO42234
is_discontinued_by_manufacturerNo

Product videos

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Customer reviews

4.818,337 ratings

Customers say

Customers find the spa shock effective, with one noting it works well with non-chlorine sanitizers.

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SpaGuard Shock is the very best for swimspas.

Alambβ€”January 4, 2026

I love this shock for our swimspa. The 6 lbs. last about 3 months for us and keeps our swimspa crystal clear. I use just a tablespoon or two after every swim and it works wonders on keeping our water fresh and clear. Read more

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Great deal

christieβ€”December 27, 2025

Works well and costs about half as much on here as it does in a hot tub store or at lowes. Read more

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Excellent hot tub shock

tiffo722β€”September 5, 2025

This shock is fantastic, and I was able to get it on Amazon for much less than in stores. I use it for my hot tub, and having a container this size means I don’t have to rush out for more in an emergency. It has a slightly strong smell, but once I sprinkle it in, the chlorine levels stay stable and my hot tub stays crystal clearβ€”no fussing with multiple chemicals. Great quality and highly effective. Highly recommend! Read more

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Made my murky water clear again

N. Thomasβ€”July 14, 2025

The media could not be loaded. Such a great product. I only gave 4 stars because it leaves this crusty residue that takes some scrubbing to remove but this stuff cleared up my spa very nicely. We had to do 2 shocks over 2 days but worked great. Read more

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Good product

Customer jbβ€”December 28, 2025

Quick delivery, great product Read more

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One capful of this after each use keeps my tub clear

Georgie and Joshβ€”November 5, 2025

A capful of this after each use, combined with my frogger system, keeps my hot tub clear and clean. Super easy to open and a great value for the money. I even use some in my pool from time to time to clear up algae. Read more

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Fast acting and effective!

drsingβ€”December 19, 2025

This product performed exceptionally well. I had been using another product together with test strips, and regular filter changes and had developed a persistent slightly cloudy condition. After applying this product my hot tub water was again crystal clear the very next day, and has remained so for 30 days, with just 1 additional treatment after 2 weeks. Also, no complaints from my wife about strong Chlorine smell or eye burning. Very satisfied customer. Thanks Read more

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Best shock treatment for a hot tub !!!

WILLIAM H LEGALLEEβ€”November 18, 2025

I have owned hot tubs for over 30 years now, and this is the best shock ever ! It clears the water and odors without creating clumps and a film of oils on the surface. It also doesn't lead to foaming. I highly recommend it ! Worth the price !!! Read more

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