---
product_id: 447264305
title: "SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb"
brand: "spachoice"
price: "₩386941"
currency: KRW
in_stock: false
reviews_count: 5
category: "Spa Choice"
url: https://www.desertcart.kr/products/447264305-spachoice-472-3-4021-04-alkalinity-up-for-spas-hot
store_origin: KR
region: South Korea
---

# Fast action: retest every 30 mins Balances alkalinity 80-140 ppm Prevents pH bounce & protects chlorine SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb

**Brand:** spachoice
**Price:** ₩386941
**Availability:** ❌ Out of Stock

## Summary

> 🛁 Elevate your spa game—because balanced water means endless relaxation!

## Quick Answers

- **What is this?** SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb by spachoice
- **How much does it cost?** ₩386941 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/447264305-spachoice-472-3-4021-04-alkalinity-up-for-spas-hot)

## Best For

- spachoice enthusiasts

## Why This Product

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

## Key Features

- • **pH Stability Booster:** Effectively buffers water to prevent pH swings, ensuring consistent chlorine performance and crystal-clear water.
- • **Rapid Adjustment Formula:** Add 1 oz and retest every 30 minutes to quickly stabilize your spa’s water chemistry without downtime.
- • **Trusted SpaChoice Quality:** Highly rated by 177+ users with a 4.6-star average, delivering reliable results for your hot tub’s health.
- • **User-Friendly Maintenance:** Comes with a downloadable user guide for easy, professional-grade spa care at home.
- • **Precision Alkalinity Control:** Maintain spa water alkalinity within the ideal 80-140 ppm range for optimal comfort and equipment longevity.

## Overview

SpaChoice Alkalinity Up is a fast-acting, precision chemical designed to maintain total alkalinity between 80-140 ppm in spas and hot tubs. By stabilizing alkalinity, it prevents pH fluctuations, enhances chlorine effectiveness, and ensures a consistently clean, comfortable soak. Trusted by thousands, this 4-pack offers professional-grade water balance with easy-to-follow instructions for hassle-free spa maintenance.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Good
Review: Affordable chemicals that help keep my hot tub in good shape.

## Features

- The desired range for total alkalinity is 80-140 ppm
- Add 1 ounce of this product and retest every 30 minutes until total alkalinity is in the range of 80-140 ppm
- Raises total alkalinity and prevents pH bounce
- Maintaining a desirable total alkalinity reading is critical to holding chlorine residuals
- pH levels are easier to control with a corrected total alkalinity
- Alkalinity acts as a buffer, improving the ability of your pool water to resist pH fluctuations
- Downloadable User Guide Available Under Product Information: Technical Specifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00UD97XPS |
| Customer Reviews | 4.6 4.6 out of 5 stars (177) |
| Date First Available | 1 July 2016 |
| Item display height | 3 inches |
| Item display length | 10 inches |
| Item display weight | 2.72 kg |
| Item display width | 6 inches |
| Item model number | 472-3-4021--02 |
| Manufacturer | SpaChoice |
| Part number | 472-3-4021-02 |
| Product Dimensions | 15.24 x 10.16 x 25.4 cm; 1.81 kg |

## Product Details

- **Brand:** SpaChoice
- **Global Trade Identification Number:** 00034261110338
- **Item weight:** 4 Pounds
- **Product benefits:** Alkalinity Increaser
- **UPC:** 034261110338

## Images

![SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb - Image 1](https://m.media-amazon.com/images/I/312Dh2bGhHL.jpg)
![SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb - Image 2](https://m.media-amazon.com/images/I/41D5+enV2-L.jpg)
![SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb - Image 3](https://m.media-amazon.com/images/I/41dNawrf-KL.jpg)
![SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb - Image 4](https://m.media-amazon.com/images/I/51268tW5mNL.jpg)
![SpaChoice 472-3-4021-04 Alkalinity Up for Spas and Hot Tubs (4 Pack), 2 lb - Image 5](https://m.media-amazon.com/images/I/51Qw5zbjP8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 13 January 2021*

Good

### ⭐⭐⭐⭐⭐ Review
*by S***T on 14 July 2025*

Affordable chemicals that help keep my hot tub in good shape.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 31 July 2024*

I do like the competitive price. I use this product to treat the water in our exercising swim spa.

## Frequently Bought Together

- SpaChoice 2-Pounds 2-Pack Premium Alkalinity Up, Alkalinity Increaser for Hot Tub, 100% Sodium Bicarbonate, Made in USA
- Leisure Time E5 Spa 56 Chlorinating Granules for Spas and Hot Tubs - Maintains Clean, Clear, Sanitized Water, 5 lbs
- EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine

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**Shop now:** [https://www.desertcart.kr/products/447264305-spachoice-472-3-4021-04-alkalinity-up-for-spas-hot](https://www.desertcart.kr/products/447264305-spachoice-472-3-4021-04-alkalinity-up-for-spas-hot)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-20*