---
product_id: 7253542
title: "API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box"
brand: "api"
price: "7787 som"
currency: KGS
in_stock: true
url: https://www.desertcart.kg/products/7253542-api-replacement-plastic-test-tubes-with-caps-for-any-aquarium
store_origin: KG
region: Kyrgyzstan
---

# universal aquarium compatibility snap-tight secure caps 24 precision test tubes API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box

**Brand:** api
**Price:** 7787 som
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead of the curve—test smarter, not harder!

## Quick Answers

- **What is this?** API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box by api
- **How much does it cost?** 7787 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/7253542-api-replacement-plastic-test-tubes-with-caps-for-any-aquarium)

## Best For

- api enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Works seamlessly with all API freshwater, saltwater, reef, and pond test kits—one solution for every aquarium.
- • **Reliable 24-Pack Replacement:** Never miss a test with a full set of 24 durable tubes ready to go.
- • **Premium API Quality Assurance:** Backed by nearly 60 years of trusted aquarium care innovation for consistent, accurate results.
- • **Keep Your Aquarium in Peak Condition:** Easily replace lost or damaged tubes and maintain flawless water testing to protect your aquatic ecosystem.
- • **Snap-Tight Caps for Leak-Free Testing:** Secure your samples with airtight caps designed to prevent spills and contamination.

## Overview

This 24-count box of API replacement plastic test tubes with snap-tight caps is compatible with all API aquarium test kits, including freshwater, saltwater, reef, and pond kits. Designed for durability and precision, these tubes ensure accurate water testing to maintain a healthy aquatic environment. Perfect for replacing lost or damaged tubes, they uphold API’s nearly 60-year legacy of trusted aquarium care.

## Description

API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box

## Features

- Contains one (1) API REPLACEMENT TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box
- Compatible with any aquarium water test kits including freshwater and saltwater test kit, pH test kit, ammonia test kit, nitrate test kit, reef test kit, calcium test kit and more
- The API test tubes are perfect to replace API Freshwater Master Test Kit tubes, API Saltwater Master Test Kit tubes, API Reef Master Test Kit tubes, API Pond Master Test Kit tubes and any other API Test Kit tubes
- Snap-tight plastic caps
- Use when original tubes have been lost or damaged

## Images

![API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box - Image 1](https://m.media-amazon.com/images/I/61ISuZ5rlRL.jpg)

## Questions & Answers

**Q: What are the dimensions of the vial? Is there a cheaper alternative? 20 dollars seems like a lot for what we're getting.**
A: If you don't need 20 of them, you can get a 6 pack for a lot cheaper: https://www.amazon.com/Aquarium-Pharmaceuticals-API-Replacement-Test/dp/B07G4NGMM8/ref=sr_1_1?keywords=5ml+test+tube&qid=1645582702&sr=8-1 More expensive per tube though.

**Q: Can these be used to store Isopropyl Alcohol for on to go first aid kit? How big is the tube and is it fragile or strong enough for extended use?**
A: I have noticed that the caps, while quite appropriate for water parameter test kits, would not be suitable for long-term storage of any liquid. They leak a bit.

**Q: What test tube rack would be best for these?**
A: I built my own. If you want a cheap hack, get a block of styrofoam and press the top of an open test tube into it at intervals to get the outer diameter perfect. Then cut out the styrofoam to the best depth. Test tubes fit snugly.

**Q: Do you sell just a box of replacement caps?**
A: If you looked for caps already and no results, that means that tubs with caps are sell together. No separate. You might want to contact the API and asked them directly.

## Frequently Bought Together

- API Replacement Test Tubes With Caps
- WUTUDMAI 2 Pcs Test Tube Stand Holders 6 Holes 6 Column Plastic Test Tube Racks Portable Test Tube Racks for Laboratory School Home (Blue PP)

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**Shop now:** [https://www.desertcart.kg/products/7253542-api-replacement-plastic-test-tubes-with-caps-for-any-aquarium](https://www.desertcart.kg/products/7253542-api-replacement-plastic-test-tubes-with-caps-for-any-aquarium)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-23*