---
product_id: 396034216
title: "2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System"
brand: "cystarry"
price: "₨7240"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/396034216-2-pcs-stainless-steel-one-way-check-valve-air-co2
store_origin: LK
region: Sri Lanka
---

# Compact 4cm size, fits standard aquarium CO2 tubing One-way valve prevents backflow, protects CO2 system Premium stainless steel, rust & break resistant 2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System

**Brand:** cystarry
**Price:** ₨7240
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your aquarium’s CO2 flow flawless—because your fish deserve the best!

## Quick Answers

- **What is this?** 2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System by cystarry
- **How much does it cost?** ₨7240 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/396034216-2-pcs-stainless-steel-one-way-check-valve-air-co2)

## Best For

- cystarry enthusiasts

## Why This Product

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

## Key Features

- • **Backflow Blocker:** Engineered to stop water from reversing into your CO2 system, preserving equipment life.
- • **Compact & Discreet:** Slim 4cm design fits seamlessly into any aquarium setup without bulk.
- • **Rustproof Durability:** Crafted from high-grade stainless steel for long-lasting, corrosion-free performance.
- • **Tool-Free Installation:** Quick and easy setup—no extra tools required, get your system running in minutes.
- • **Optimized for CO2 Systems:** Specifically designed for pressurized CO2 lines, ensuring efficient gas flow and aquarium health.

## Overview

This 2-piece stainless steel one-way check valve set is designed to prevent backflow in aquarium CO2 systems, protecting your equipment and maintaining optimal gas delivery. Made from premium rust-resistant stainless steel, each compact valve measures just 4cm for easy integration into standard aquarium tubing. Ideal for professional and hobbyist aquarists seeking reliable, maintenance-free performance.

## Description

2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System

## Features

- Our one way check valve can prevent the aquarium from water flowing back, which is caused by the decrease, and keep the function and service life of Carbon dioxide bottle.
- The one way check valve is suitable for CO2 supply system in fish tank, aquarium and others.
- Made from premium stainless steel materials break and rust resistant and cleans easy.Small and compact, about 4cm long.
- Suitable for CO2 with pressurized system, not for air pumps.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Cystarry |
| Item Weight | 18 g |
| Package Dimensions | 8.2 x 7.39 x 2.01 cm; 18 g |
| Item model number | 570dd27e-0e4a-4f3d-847a-b916a481357b |
| Material | Stainless Steel |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Stainless Steel
- **Brand:** Cystarry
- **Exterior finish:** Stainless Steel
- **Inlet connection type:** Barb
- **Outlet connection type:** Barb

## Images

![2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System - Image 1](https://m.media-amazon.com/images/I/61+zsPJYldL.jpg)

## Frequently Bought Together

- Cystarry 2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System
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**Shop now:** [https://www.desertcart.lk/products/396034216-2-pcs-stainless-steel-one-way-check-valve-air-co2](https://www.desertcart.lk/products/396034216-2-pcs-stainless-steel-one-way-check-valve-air-co2)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-02*