---
product_id: 453578456
title: "86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz"
brand: "hth spa"
price: "€ 34.01"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/453578456-86121-clarifier-concentrated-spa-and-hot-tub-chemical-for-crystal
store_origin: SK
region: Slovakia
---

# 16 oz concentrated formula Enhances filter efficiency Compatible with all spa types 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz

**Brand:** hth spa
**Price:** € 34.01
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into Clarity with HTH!

## Quick Answers

- **What is this?** 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz by hth spa
- **How much does it cost?** € 34.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/453578456-86121-clarifier-concentrated-spa-and-hot-tub-chemical-for-crystal)

## Best For

- hth spa enthusiasts

## Why This Product

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

## Key Features

- • **Elevate Your Soak:** Enjoy longer, more relaxing spa sessions with cleaner water.
- • **Concentrated Power:** Just a small amount goes a long way for maximum impact.
- • **Routine Reinvented:** Integrate into your HTH Spa care for optimal results.
- • **Crystal Clarity Awaits!:** Transform dull water into a sparkling oasis.
- • **Universal Compatibility:** Works seamlessly with bromine, chlorine, and biguanide spas.

## Overview

HTH Spa 86121 Clarifier is a concentrated 16 oz formula designed to restore crystal clarity to your spa or hot tub water. It enhances filter efficiency and is compatible with all types of spas, ensuring a clean and relaxing soaking experience.

## Description

HTH Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz

## Features

- BENEFIT: Use this concentrated formula to bring crystal clarity back to dull spa or hot tub water and enjoy a more relaxing experience
- STRONG CLEANSER: Concentrated formula that will ensure your spa or hot tub is ideal for soaking for a long time
- IMPROVES PERFORMANCE: Raises filter efficiency to keep your water staying clean
- COMPATIBLE WITH ALL SPAS: HTH Spa Clarifier is great for all spas, including bromine, chlorine and biguanide
- YOU'RE ALL CLEAR WITH HTH: For best results, use HTH Spa Clarifier as part of your regular HTH Spa care routine

## Product Details

- **Brand:** hth Spa
- **Item Weight:** 16 Ounces
- **Item Form:** Liquid
- **Product Benefits:** Restores crystal clarity to spa water, improves filter efficiency, compatible with all spas, part of regular HTH Spa care routine
- **UPC:** 073187861214

## Images

![86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz - Image 1](https://m.media-amazon.com/images/I/61lxdOVtgNL.jpg)

## Available Options

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

## Questions & Answers

**Q: What are the ingredients ?**
A: The HTH spa Clarifier contains cationic polymer, which clears dull, hazy water, improves filter efficiency. If you have additional questions, please feel free to reach out to our Consumer Engagement department at 866-484-7665. We're Here To Help, M-F, 9 AM - 7 PM, EST.

**Q: What quantity to use for the small hot tub?**
A: I have a 500 gallon hot tub and I use 2 oz a week

**Q: Can you use this in a Inflatable hot tub?**
A: Yes, you can use it in an inflatable hot tub, just be sure to use the correct dosage according to your volume of water.  A clarifier basically chelates particles in your water so they can be filtered out through your pump.  As long as your system is working properly, there should be not problem.

**Q: This work good on inflatable hot tubs?**
A: Yes. I use it in my inflatable and have for about 2 years. Works great.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by E***L on August 13, 2025*

This stuff worked miracles. Hot tub was chemically balanced but I could not clear the haze. I tried another clarifier and the water did not clear. This worked within 4 hours.

### ⭐⭐⭐⭐⭐ Sparkling water
*by E***N on July 27, 2025*

This spa clarifier cleared up my cloudy hot tub water within hours although chemicals were balanced. Super easy to use—just pour 1-2 capfuls in. No foam, no smell, and it didn’t mess with water chemistry. We use it about once a week now for clear water

### ⭐⭐⭐⭐⭐ Happy!
*by L***R on September 21, 2025*

On time. Works as it should.

## Frequently Bought Together

- HTH Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz
- HTH Spa 86134 Clear Chlorinating Sanitizer, Spa & Hot Tub Chemical Controls Bacteria and Algae, 2.25 lbs
- HTH Spa 86135 Non Chlorine Shock Oxidizer, Spa & Hot Tub Chemical Clears Cloudy Water, 2.25 lbs

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**Shop now:** [https://www.desertcart.sk/products/453578456-86121-clarifier-concentrated-spa-and-hot-tub-chemical-for-crystal](https://www.desertcart.sk/products/453578456-86121-clarifier-concentrated-spa-and-hot-tub-chemical-for-crystal)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-25*