HTH 3-inch Chlorine Tablets Advanced — Tablets (Form), 25 lb — Chlorinating tablets (pool chemical type) to sanitize pool water
HTH 3-inch Chlorine Tablets Advanced — Tablets (Form), 25 lb — Chlorinating tablets (pool chemical type) to sanitize pool water
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HTH 3-inch Chlorine Tablets Advanced — Tablets (Form), 25 lb — Chlorinating tablets (pool chemical type) to sanitize pool water

|9,397 ratings
HTH 3-inch Chlorine Tablets Advanced — Tablets (Form), 25 lb — Chlorinating tablets (pool chemical type) to sanitize pool waterHTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 25 lbsHTH Pool Care 3 Chlorine Tablet Advanced for Swimming Pools 8oz Single TabletHTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 5 lbs2 pack HTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 25 lbs2 pack HTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 5 lbs
Size25 lbs
Pack SizeSingle

Key item features

  • Triple Action: These 3-inch chlorine tablets sanitize, clarify, and protect swimming pool water against algae and bacteria with a convenient, multi-functional formula.
  • Extended Dissolution: The slow-dissolving tablets are sun-protected for longer chlorine life, lasting up to one week per dose.
  • Clear Water: The advanced formula ensures beautiful, clean, and clear water by sanitizing, clarifying, and killing algae.
  • Versatile Application: Suitable for use in a floater, feeder, or skimmer basket, these tablets are compatible with all pool types, including vinyl-lined and salt water systems.
  • Simple Dosage: Each tablet treats 10,000 gallons of water, providing a convenient one-week dosage for effective pool maintenance.
  • Maintenance Recommendation: For optimal results, it is recommended to use HTH 6-Way Test Strips twice weekly to balance water and maintain chlorine levels between 1 and 4 ppm.
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4.5 out of 5 stars
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9,397 ratings1,855 reviews
How item rating is calculated
  1. 5 stars79% (7,424)
  2. 4 stars9% (836)
  3. 3 stars4% (357)
  4. 2 stars2% (163)
  5. 1 star7% (617)
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Showing 1-3 of 1,855 reviews

Oct 5, 2026
Reviewer name: chesney
Top Reviewer
Item details
Size: 5 lbs
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good product.

These keep the spa from getting green, and give me peace of mind. Easy to use. I buy this every few months.

Helpful?6634f510-bb15-11f1-b742-47fb96ec52eb442654019
Oct 5, 2026
Reviewer name: CHERYL
Top Reviewer
Item details
Size: 5 lbs
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Awesome

Love the way these are packaged!

Helpful?6634f510-bb15-11f1-b742-47fb96ec52eb442654019
Sep 29, 2026
Reviewer name: Beverly
Top Reviewer
Item details
Size: 25 lbs
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good quality product

Works exactly as it should. Had it delivered

Helpful?6634f510-bb15-11f1-b742-47fb96ec52eb442654019
Current price is $127.0031.8 ¢/oz
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $127.00
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $127.00

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Shipping, arrives by Fri, Oct 16 to Columbus, 43215
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Extended holiday returns
Free Holiday returns until Jan 31