Item 1 of 2
Item 1 of 2
popularneomatrixviper posted May 12, 2026 3:02 AM
Costco Wholesale
Deal Details
https://www.costco.com/p/-/4201000378
$15 OFF
$15 manufacturer's savings is valid 5/11/26 through 6/7/26. While supplies last.
Limit 10 per member.
20 x 1 lb. Shock Bags and 20 6-way Test Strips
Treatment for Weekly Use, Prevents Bacteria and Algae
Use Weekly To Solve 90% of Swimming Pool Water Problems
Cal-hypo Restores Pool Water Clarity to Prevent Over Stabilization or Chlorine Lock
1 lb. Bag Treats up to 13,500 Gallons
$15 OFF
$15 manufacturer's savings is valid 5/11/26 through 6/7/26. While supplies last.
Limit 10 per member.
20 x 1 lb. Shock Bags and 20 6-way Test Strips
Treatment for Weekly Use, Prevents Bacteria and Algae
Use Weekly To Solve 90% of Swimming Pool Water Problems
Cal-hypo Restores Pool Water Clarity to Prevent Over Stabilization or Chlorine Lock
1 lb. Bag Treats up to 13,500 Gallons
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
https://www.costco.com/p/-/4201000378
$15 OFF
$15 manufacturer's savings is valid 5/11/26 through 6/7/26. While supplies last.
Limit 10 per member.
20 x 1 lb. Shock Bags and 20 6-way Test Strips
Treatment for Weekly Use, Prevents Bacteria and Algae
Use Weekly To Solve 90% of Swimming Pool Water Problems
Cal-hypo Restores Pool Water Clarity to Prevent Over Stabilization or Chlorine Lock
1 lb. Bag Treats up to 13,500 Gallons
$15 OFF
$15 manufacturer's savings is valid 5/11/26 through 6/7/26. While supplies last.
Limit 10 per member.
20 x 1 lb. Shock Bags and 20 6-way Test Strips
Treatment for Weekly Use, Prevents Bacteria and Algae
Use Weekly To Solve 90% of Swimming Pool Water Problems
Cal-hypo Restores Pool Water Clarity to Prevent Over Stabilization or Chlorine Lock
1 lb. Bag Treats up to 13,500 Gallons
Community Voting
Deal Score
+12
Good Deal
Bad Deal
Found by htp182
Forum Thread
36% off
Found by minntwins
Forum Thread
62% off
Found by gaamn114
Forum Thread
42% off
Found by minntwins
Forum Thread
82% off
Found by LolaBunny21
Forum Thread
67% off
Found by pennysave
Forum Thread
76% off
Found by phoinix
Forum Thread
34% off
Found by phoinix
Forum Thread
43% off
Join The Conversation
Share information with the community. Please follow our Community Guidelines and be kind!
9 Comments
Sign up for a Slickdeals account to remove this ad.
HTH is known for skimping on the chlorine %
Our community has rated this post as helpful. If you agree, why not thank banilla16
Sign up for a Slickdeals account to remove this ad.
Join The Conversation
Share information with the community. Please follow our Community Guidelines and be kind!