---
product_id: 515840682
title: "HTH 42055 Pool Care 3\" Chlorine Tabs Advanced, Swimming Pool Sanitizer with Clarifier & Algaecide - Destroys Bacteria & Algae, Delivers Crystal Clear Water All Season, Slow Dissolving, 25 lbs"
brand: "hth"
price: "€ 319.40"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hth"
url: https://www.desertcart.hr/products/515840682-hth-42055-pool-care-3-chlorine-tabs-advanced-swimming-pool
store_origin: HR
region: Croatia
---

# Slow dissolving for up to 1 week Sun-protected formula for longer chlorine life Sanitizer + clarifier + algaecide all-in-one HTH 42055 Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Sanitizer with Clarifier & Algaecide - Destroys Bacteria & Algae, Delivers Crystal Clear Water All Season, Slow Dissolving, 25 lbs

**Brand:** hth
**Price:** € 319.40
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your pool pristine and your summer endless with HTH Advanced Chlorine Tabs!

## Quick Answers

- **What is this?** HTH 42055 Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Sanitizer with Clarifier & Algaecide - Destroys Bacteria & Algae, Delivers Crystal Clear Water All Season, Slow Dissolving, 25 lbs by hth
- **How much does it cost?** € 319.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/515840682-hth-42055-pool-care-3-chlorine-tabs-advanced-swimming-pool)

## Best For

- hth enthusiasts

## Why This Product

- Trusted hth brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Triple-Action Power:** Sanitize, clarify, and eliminate algae with one convenient tab
- • **Long-Lasting Clarity:** Slow-dissolving formula keeps your pool crystal clear for up to 7 days
- • **Data-Driven Pool Care:** Pair with HTH 6-Way Test Strips to maintain perfect chlorine balance (1-4 ppm)
- • **Effortless Maintenance:** Use in floaters, feeders, or skimmer baskets for hassle-free dosing
- • **Universal Compatibility:** Perfect for all pool types including vinyl-lined and saltwater systems

## Overview

HTH 3" Chlorine Tabs Advanced combine sanitizer, clarifier, and algaecide in a slow-dissolving, sun-protected tablet that lasts up to one week. Compatible with all pool types, these tabs ensure crystal clear, algae-free water all season long, making pool maintenance effortless and effective.

## Description

The HTH 3” Chlorine Tabs Advanced is the ultimate convenience for pool care. This easy and convenient tab is a sanitizer, clarifier, and algaecide all in one, protecting your swimming pool and swimmers. The advanced formula sanitizes, clarifies, and kills algae for beautiful, clean, and clear water all season. These slow-dissolving, long-lasting tabs are sun-protected for longer chlorine life, dissolve slowly, and last up to one week. Compatible with all pool types, including vinyl-lined pools and saltwater systems, this product can be used in a floater, feeder, or skimmer basket. For best results, use HTH 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm. With HTH 3” Chlorine Tabs Advanced, you're all clear for endless summer fun!

Review: Great price, Great product - Was surprised to see desertcart had the cheapest price on these. They keep the water clean and dissolve at a good rate. They work great! Pair with Clorox pool tester steps to stay on top of chemical levels! There were a few chipped/broken tabs in the box, but nothing too bad.
Review: Great product clear pool and happy customer - Well having my first pool which is a 15' above ground I leaned the hard way to maintain the water. First year checked the water every day with test strips and battled to keep it clear. Was buying gallons of liquid chlorine and putting recommended amounts in and had algae problem all the time. Bought algae additive and added that as directed and helped but still constant maintenance and the water looked slightly cloudy and not real clear. Bought clarifier and added that which helped but still wasn't right. The second year started out the same way but thought I would try the tablet route. Bought a floater and HTH 3" tablets advanced . What a difference using 1 tab a week and beautiful clear water. Still have to do some cleaning but this made it pleasurable to enjoy my pool. Can't recommend this enough.

## Features

- BENEFIT: Sanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy and convenient tab
- CLEAR BLUE WATER: This advanced formula sanitizes, clarifies, and kills algae for beautiful, clean, and clear water all season
- SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH 3” Chlorine Tabs Advanced dissolve slowly and last up to one week
- COMPATIBLE WITH ALL POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems; Use in floater, feeder, or skimmer basket
- YOU’RE ALL CLEAR WITH HTH: For best results, use HTH 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #3,539 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #30 in Swimming Pool Chlorine |
| Brand | HTH |
| Customer Reviews | 4.6 out of 5 stars 3,117 Reviews |
| Global Trade Identification Number | 00073187420558 |
| Item Form | Tablet |
| Item Weight | 16 ounces |
| Product Benefits | Controls Algae |
| UPC | 073187420558 |

## Product Details

- **Brand:** HTH Store
- **Item Weight:** 1 Pounds
- **Item Form:** Tablet
- **Product Benefits:** Controls Algae
- **UPC:** 073187420558

## Images

![HTH 42055 Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Sanitizer with Clarifier & Algaecide - Destroys Bacteria & Algae, Delivers Crystal Clear Water All Season, Slow Dissolving, 25 lbs - Image 1](https://m.media-amazon.com/images/I/7108SAIXIuL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Does this have Stabilizer**
A: When Trichloro-S-Triazinetrione breaks down, chlorine and cyanuric acid are produced. Cyanuric acid is a stabilizer.

**Q: How many tablets are in a 5pound container**
A: 10 tablets. Basically $5.20 a tablet.

**Q: How many come in each container?**
A: Each tablet weighs approximately 8 oz.  So in a 5# container, you should have around 10 tablets.

**Q: Can I use this in my inflatable pool? Just wanting to make sure it won’t be too much since inflatables are much smaller compared to actual swim pools.**
A: Actually this product/tablet is too large for a small inflatable pool.  There will not be enough circulation in the pool to properly dissolve the product.  It will not be cost effective for you.  NOW, please know that we cannot recommend any product if your pool does not have a pump/filter.  Assuming that you do have that, you will be better using a granular chlorine such as the HTH Pool Care Shock Advanced in the 1.5 or 5 pound container.  This is because you will need a container that is reclosable and that you can measure the small amount (based on your volume of water) to your pool.  Do not buy the 1 pound container of shock because it's meant for single use in a large pool (10,000-12,000 gallons).  Again, the 1.5 shock in the reclosable container will work best.  Please consider calling our Consumer Engagement Team at 866-484-7665 to get the exact amount of dosage needed for your pool. We're available M-F, 9 AM - 7 PM EST.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price, Great product
*by S***H on February 3, 2026*

Was surprised to see Amazon had the cheapest price on these. They keep the water clean and dissolve at a good rate. They work great! Pair with Clorox pool tester steps to stay on top of chemical levels! There were a few chipped/broken tabs in the box, but nothing too bad.

### ⭐⭐⭐⭐⭐ Great product clear pool and happy customer
*by M***K on March 2, 2026*

Well having my first pool which is a 15' above ground I leaned the hard way to maintain the water. First year checked the water every day with test strips and battled to keep it clear. Was buying gallons of liquid chlorine and putting recommended amounts in and had algae problem all the time. Bought algae additive and added that as directed and helped but still constant maintenance and the water looked slightly cloudy and not real clear. Bought clarifier and added that which helped but still wasn't right. The second year started out the same way but thought I would try the tablet route. Bought a floater and HTH 3" tablets advanced . What a difference using 1 tab a week and beautiful clear water. Still have to do some cleaning but this made it pleasurable to enjoy my pool. Can't recommend this enough.

### ⭐⭐⭐⭐⭐ Works Perfect
*by D***N on February 26, 2026*

Love this product. Works perfect. It keeps your pool water completely clear. It is a shame that they won't ship it to Puerto Rico anymore.

## Frequently Bought Together

- HTH 42055 Swimming Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Chlorinating Sanitizer, 25lb
- HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

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**Shop now:** [https://www.desertcart.hr/products/515840682-hth-42055-pool-care-3-chlorine-tabs-advanced-swimming-pool](https://www.desertcart.hr/products/515840682-hth-42055-pool-care-3-chlorine-tabs-advanced-swimming-pool)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-15*