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richman900 7.9K Views
Sep 26, 2026 7:18 PM

YMMV 40lbs 3" Chlorine Tablets @ Costco

$50

$155

67% off
Costco Wholesale
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Costco has the 3" Chlorine tablets on sale at select locations. Purchased 2 at the Bay Area Costco in Antioch.

https://www.costco.com/p/-/hth-3-...?langId=-1
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Community Notes
About the Poster
Costco has the 3" Chlorine tablets on sale at select locations. Purchased 2 at the Bay Area Costco in Antioch.

https://www.costco.com/p/-/hth-3-...?langId=-1

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13 Comments

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Sep 26, 2026 8:54 PM
12.8K Comments
Joined Dec 2008
tennis8363Sep 26, 2026 8:54 PM
12.8K Comments
...and the price?
Sep 26, 2026 9:27 PM
823 Comments
Joined Mar 2016
Dynamite_DolemiteSep 26, 2026 9:27 PM
823 Comments
Pre covid. Regular price for this was $80. During Covid the prices went up ridiculous. A chlorine plant blew up or something like that. Since then it's been $150 and up. Ridiculous. Everything's more expensive and has not gotten cheaper.
Sep 26, 2026 10:07 PM
117 Comments
Joined Aug 2008
finnadatSep 26, 2026 10:07 PM
117 Comments
Not in Houston, tx... I wish it was but it's in the about to be discounted corner
Sep 26, 2026 11:43 PM
1.5K Comments
Joined Apr 2015
jvinSep 26, 2026 11:43 PM
1.5K Comments
Not in South Florida either. I guess it always pool seasons
1
Original Poster
Sep 27, 2026 3:08 AM
114 Comments
Joined Sep 2013
richman900
Original Poster
Sep 27, 2026 3:08 AM
114 Comments
Quote from tennis8363 View quoted comment :
...and the price?
$49.97
Sep 27, 2026 4:37 AM
611 Comments
Joined Jun 2008
tooquickSep 27, 2026 4:37 AM
611 Comments
How many were left at the Antioch Costco?
Sep 27, 2026 1:48 PM
45 Comments
Joined Dec 2015
ldubb31Sep 27, 2026 1:48 PM
45 Comments
Regular price in San Antonio also

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Sep 27, 2026 2:56 PM
790 Comments
Joined May 2009
ripplinghurstSep 27, 2026 2:56 PM
790 Comments
$50 in Antioch, California, which is a 45min drive for me. All the others $154. I have one full from Amazon still, where each tablet is wrapped in plastic.
Sep 27, 2026 10:22 PM
4.2K Comments
Joined Jun 2014
proskatersf90Sep 27, 2026 10:22 PM
4.2K Comments
Chlorine almost backb at 2018 pre-factory fire prices
Sep 29, 2026 2:50 AM
2.4K Comments
Joined Nov 2010
rage4orderSep 29, 2026 2:50 AM
2.4K Comments
Quote from ldubb31 View quoted comment :
Regular price in San Antonio also
Thanks! Saved me a trip.
Sep 29, 2026 2:54 AM
2.2K Comments
Joined Jan 2009
cockadoodleSep 29, 2026 2:54 AM
2.2K Comments
Are these tasty like tide pods?
Sep 29, 2026 2:44 PM
172 Comments
Joined Jul 2012
galaxyfanSep 29, 2026 2:44 PM
172 Comments
These are not slow dissolve tablets. They are very porous and they don't come individually wrapped. I have used this and Sam's club tablets, sams club ones come wrapped. I didn't know until I had to use a chlorine tablet to scrub one of the algae spots where this one broke into pieces immediately. Not sure about performance.
Sep 30, 2026 12:34 AM
735 Comments
Joined Sep 2018
ProtegeSep 30, 2026 12:34 AM
735 Comments
First discounted to $80. They had at least 10. Then last week discounted to $40-50. Was only 2 left day after they discounted it in Tuesday. Picked up 1 container. They also discounted the powder 20lb packet version.

To shock it I just put a mask on and crush the tab and mix it in a gallon jug.

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