---
product_id: 379993629
title: "Api Replacement Test Tubes With Caps For Any Aquarium Test Kit Including Api Freshwater Master Test Kit 24-Count Box"
brand: "api"
price: "296 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/379993629-api-replacement-test-tubes-with-caps-for-any-aquarium-test
store_origin: RO
region: Romania
---

# universal aquarium compatibility snap-tight secure caps 24 precision test tubes Api Replacement Test Tubes With Caps For Any Aquarium Test Kit Including Api Freshwater Master Test Kit 24-Count Box

**Brand:** api
**Price:** 296 Lei
**Availability:** ✅ In Stock

## Summary

> 🧪 Never miss a test—stay ahead in aquarium care!

## Quick Answers

- **What is this?** Api Replacement 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?** 296 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/379993629-api-replacement-test-tubes-with-caps-for-any-aquarium-test)

## 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 aquarium test kits—freshwater, saltwater, reef, and pond.
- • **24 Precision-Tested Tubes:** Bulk pack ensures you're never caught without a replacement.
- • **Lightweight & Durable Design:** Compact 91g pack fits perfectly in your testing kit without adding bulk.
- • **Essential Aquarium Maintenance Upgrade:** Replace lost or damaged tubes and maintain flawless water testing routines.
- • **Snap-Tight Caps for Leak-Proof Security:** Keep your samples safe and contamination-free every time.

## Overview

This 24-count box of API Replacement Test Tubes with snap-tight caps is designed for professional and hobbyist aquarium keepers. Compatible with all API aquarium test kits—including freshwater, saltwater, reef, and pond varieties—these durable, leak-proof tubes ensure precise water testing and easy sample handling. Lightweight and perfectly sized, they are the essential replacement solution to keep your aquatic environment thriving.

## Description

Replacement 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Aquatics, Aquatics Water Testing, Aquatics Water Testing Test Kits, PetSupplies |
| Product Dimensions | 18.1 x 3.18 x 8.89 cm; 91 g |
| Item model number | 32 |
| Pet Life Stage | All Life Stages |
| Allergen Information | Apple Free |
| Color | multicolor |
| Size | 24 Count (Pack of 1) |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Active |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 91 g |

## Images

![Api Replacement 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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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-01*