---
product_id: 453578456
title: "HTH Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz"
brand: "hth spa"
price: "728509₫"
currency: VND
in_stock: true
reviews_count: 11
category: "Hth Spa"
url: https://www.desertcart.vn/products/453578456-hth-spa-86121-clarifier-concentrated-spa-and-hot-tub-chemical
store_origin: VN
region: Vietnam
---

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

**Brand:** hth spa
**Price:** 728509₫
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your spa game—because clear water is the new luxury!

## Quick Answers

- **What is this?** HTH Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz by hth spa
- **How much does it cost?** 728509₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/453578456-hth-spa-86121-clarifier-concentrated-spa-and-hot-tub-chemical)

## 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

- • **Crystal Clear Every Soak:** Transforms dull spa water into sparkling clarity for ultimate relaxation.
- • **Essential Spa Care Ritual:** Integrate into your regular maintenance for consistently flawless water.
- • **Universal Spa Compatibility:** Works seamlessly with bromine, chlorine, and biguanide systems—no compromises.
- • **Optimizes Filter Performance:** Enhances your spa’s filtration system to keep water pristine longer.
- • **Powerful Concentrated Formula:** Delivers deep cleansing action that outperforms ordinary clarifiers.

## Overview

HTH Spa Clarifier is a 16 fl oz concentrated liquid designed to restore crystal-clear water in all types of spas and hot tubs. It enhances filter efficiency and is compatible with bromine, chlorine, and biguanide sanitizers. Trusted by thousands with a 4.7-star rating, it’s the go-to solution for maintaining pristine, inviting spa water.

## Description

The HTH Spa Clarifier is a must-have for any spa or hot tub owner. This concentrated formula helps to bring crystal clarity back to dull water, ensuring a more relaxing soaking experience. The strong cleanser is formulated to improve performance and raise filter efficiency, keeping your water clean and clear. HTH Spa Clarifier is compatible with all spas, including those that use bromine, chlorine, and biguanide systems. For best results, use HTH Spa Clarifier as part of your regular HTH Spa care routine. With HTH, you're all clear and ready to relax in your spa or hot tub!

Review: Clear water - Used another product originally and did not clear up water at all. Purchased and tried HTH Spa Clarifier. This product worked great. After first filtration cycle, there was a ring around the tub with much scum, assuming soaps and lotion in the water from suits and bodies. Wiped clean, changed filter and ran again. Same thing with ring around tub but water was very clear. Rinsed filter and ran one more time. Excellent results. Would recommend this product to make water crystal clear. Make sure to rinse filter or change out as noted above.
Review: What is shipped is exactly what is advertised & arrived when they said it would! - Works great

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09RG87Z2B |
| Best Sellers Rank | #1,690 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in Swimming Pool Clarifiers & Enzymes |
| Brand | hth Spa |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,431) |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00073187861214 |
| Item Form | Liquid |
| Item Weight | 1 pounds |
| Item model number | 86121 |
| Manufacturer | Innovative Water Care |
| Number of Items | 1 |
| Product Benefits | Restores crystal clarity to spa water, improves filter efficiency, compatible with all spas, part of regular HTH Spa care routine |
| Product Dimensions | 2.46 x 2.46 x 7.85 inches |
| UPC | 073187861214 |
| Unit Count | 16.0 Fluid Ounces |

## Product Details

- **Brand:** hth Spa
- **Item Form:** Liquid
- **Item Weight:** 16 Ounces
- **UPC:** 073187861214

## Images

![HTH Spa 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

### ⭐⭐⭐⭐⭐ Clear water
*by D***C on February 10, 2026*

Used another product originally and did not clear up water at all. Purchased and tried HTH Spa Clarifier. This product worked great. After first filtration cycle, there was a ring around the tub with much scum, assuming soaps and lotion in the water from suits and bodies. Wiped clean, changed filter and ran again. Same thing with ring around tub but water was very clear. Rinsed filter and ran one more time. Excellent results. Would recommend this product to make water crystal clear. Make sure to rinse filter or change out as noted above.

### ⭐⭐⭐⭐⭐ What is shipped is exactly what is advertised & arrived when they said it would!
*by S***. on February 6, 2026*

Works great

### ⭐⭐⭐⭐⭐ 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.

## 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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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-08*