---
product_id: 548390413
title: "Swimming Pool Test kit refill bottles for Swimming Pools, Fountains, Jaccuzis. Aquaplus OTO & PH Refill Liquid 20 ml Bottle."
brand: "aqua plus"
price: "$16.89"
currency: USD
in_stock: true
category: "Aqua Plus"
url: https://www.desertcart.us/products/548390413-swimming-pool-test-kit-refill-bottles-for-swimming-pools-fountains
store_origin: US
region: United States of America
---

# 20 ml precision refill Certified reactive substrate Reusable bottle design Swimming Pool Test kit refill bottles for Swimming Pools, Fountains, Jaccuzis. Aquaplus OTO & PH Refill Liquid 20 ml Bottle.

**Brand:** aqua plus
**Price:** $16.89
**Availability:** ✅ In Stock

## Summary

> 💦 Stay crystal clear, stay ahead of the swim game!

## Quick Answers

- **What is this?** Swimming Pool Test kit refill bottles for Swimming Pools, Fountains, Jaccuzis. Aquaplus OTO & PH Refill Liquid 20 ml Bottle. by aqua plus
- **How much does it cost?** $16.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/548390413-swimming-pool-test-kit-refill-bottles-for-swimming-pools-fountains)

## Best For

- aqua plus enthusiasts

## Why This Product

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

## Key Features

- • **Certified Accuracy:** Aqua Plus certified formula guarantees reliable pH and OTO readings.
- • **Eco-Friendly Reuse:** Designed for easy refilling, reducing plastic waste and saving money.
- • **Poolside Peace of Mind:** Keep your pool, fountain, or jacuzzi perfectly balanced and inviting.
- • **Universal Compatibility:** Works seamlessly with ANY swimming pool or spa test kit.
- • **Precision Refill, Zero Waste:** 20 ml bottles ensure exact dosing for flawless water balance.

## Overview

AQUA PLUS Swimming Pool Test Kit Refill Bottles provide 20 ml of certified reactive substrate liquid for precise pH and OTO testing. Compatible with all test kits, these eco-conscious refill bottles help maintain perfect water quality in pools, fountains, and jacuzzis, ensuring safe and sparkling water every time.

## Description

2 Test kit bottles to re-fill your water test kit Keep away from children

## Features

- Aqua Plus certified
- Works with ANY test kit
- Easy to re-use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CDY6QQKD |
| Best Sellers Rank | #80,753 in Health ( See Top 100 in Health ) #1,329 in All-Purpose Household Cleaners |
| Date First Available | 9 August 2023 |
| Manufacturer | Aqua Plus |
| Material type | Reactive substrate |

## Product Details

- **Brand:** Aqua plus
- **Manufacturer:** Aqua Plus
- **Material:** Reactive substrate
- **Recommended uses for product:** swimming pool water, fountains, jacuzzis
- **pH range:** 7.2-7.6

## Images

![Swimming Pool Test kit refill bottles for Swimming Pools, Fountains, Jaccuzis. Aquaplus OTO & PH Refill Liquid 20 ml Bottle. - Image 1](https://m.media-amazon.com/images/I/51c2KJOAb6L.jpg)

## Frequently Bought Together

- AQUA PLUS Swimming Pool Test kit refill bottles for Swimming Pools, Fountains, Jaccuzis. Aquaplus OTO & PH Refill Liquid 20 ml Bottle.
- AQUA PLUS Liquid Algaecide for Pool, Spa, jacuzzi baths, and Fountain. Algicide for Anti-Algae Water Treatment Chemical 5L
- Intex Swimming Pool Floating Chemical Dispenser, 17.8 cm, 29041

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/548390413-swimming-pool-test-kit-refill-bottles-for-swimming-pools-fountains](https://www.desertcart.us/products/548390413-swimming-pool-test-kit-refill-bottles-for-swimming-pools-fountains)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*