Shop More, Save More - Enjoy Free Shipping Above $150 on Every Order! Learn More

Stainless Steel Check Valve

$11.99 NZD
Tax included Shipping calculated at checkout.

The Stainless Steel Check Valve prevents backflow in CO₂ injection systems and air pumps, protecting your regulator, diffuser, or oxygen pump. Fits standard 4mm inner / 6mm outer diameter tubing. Durable, corrosion-resistant, and easy to install.


Delivery and Shipping

Standard Shipping: Orders are typically dispatched within 1 business day. Delivery times vary based on the destination.

  •  Urban Areas: 1-3 business days
  •  Rural Areas: 2-5 business days
  •  Courier Services Used: NZ Post and Aramex.

Free shipping is available for New Zealand customers with a minimum purchase of $150.00.

  •  Non-Rural Addresses Only: This offer applies only to non-rural addresses.
  •  Exclusions: Bulky items such as aquariums are excluded from the free shipping offer.

Description

The Stainless Steel Check Valve is a critical safety component for both CO₂ injection systems and air pumps, designed to prevent backflow and protect your equipment. Whether you're running a CO₂ system for a planted aquarium or using an oxygen/air pump for fish tanks, this durable check valve ensures that water does not siphon back into your regulator, air pump, or other sensitive equipment, especially during power outages or when the system is turned off.

Unlike plastic check valves that degrade over time, this high-quality stainless steel valve is corrosion-resistant, ensuring long-term durability and reliability. Its compact, easy-to-install design makes it a hassle-free solution for any aquarium setup, providing peace of mind and maintaining the efficiency of your system.

This check valve is compatible with standard aquarium tubing, specifically 4mm inner diameter / 6mm outer diameter hoses, which are the industry standard for aquarium CO₂ and air pump setups.

Key Features

  • Backflow Prevention for CO₂ & Air Pumps – Protects your CO₂ regulator, diffusers, and oxygen/air pumps from water siphoning back into the system.
  • High-Quality Stainless SteelCorrosion-resistant and durable, lasting significantly longer than plastic alternatives.
  • Industry Standard Sizing – Designed to fit 4mm inner diameter / 6mm outer diameter tubing, the most commonly used size for aquarium CO₂ and air pump setups.
  • Versatile Compatibility – Works with CO₂ injection systems in planted tanks and air pumps for freshwater and marine aquariums.
  • Compact & Easy to Install – Small, lightweight design allows for seamless integration into your existing tubing setup.
  • Reliable & Efficient – Prevents equipment damage and ensures consistent CO₂ injection and air distribution for optimal aquarium health.

How It Works

  1. Connect the Check Valve – Install in your CO₂ line or air tubing, ensuring the correct flow direction (marked on the valve).
  2. Prevents Water Siphoning – Stops water from flowing back into your regulator or air pump, protecting your system.
  3. Ensures System Efficiency – Maintains stable CO₂ delivery or oxygenation by keeping air/CO₂ moving in one direction.

Why Choose a Stainless Steel Check Valve?

Unlike standard plastic check valves that weaken and crack over time, this stainless steel version is built to last and resistant to wear, providing long-term reliability. Whether you're using it for CO₂ injection in planted aquariums or air pumps for oxygenation, this check valve ensures your equipment stays safe while keeping your aquarium system functioning optimally.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Based on 2 reviews
100%
(2)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
d
djnieuwoudt

Nice solid build

A
Amber Ranganui

Love these as they are so reliable

Stainless Steel Check Valve
The Aquascape Shop

Stainless Steel Check Valve

$11.99 NZD
The Stainless Steel Check Valve is a critical safety component for both CO₂ injection systems and air pumps, designed to prevent backflow and protect your equipment. Whether you're running a CO₂ system for a planted aquarium or using an oxygen/air pump for fish tanks, this...

Type

Aquarium Co2 Injection
View product