Ista Stainless Steel Co2 Check Valve

The Ista Stainless Steel Check Valve is a small but essential component used in aquarium CO₂ systems. Its main function is to prevent water from flowing backward into sensitive equipment like regulators, solenoids, and CO₂ cylinders.

🔹 Key Features

• Anti backflow protection – stops water from entering CO₂ equipment when pressure drops
• Stainless steel body – more durable and long-lasting than plastic valves
• Internal spring mechanism – ensures reliable one-way gas flow
• Clear flow direction marking – arrow shows correct installation direction
• Compact size – easy to install in tight aquarium setups

⚙️ Specifications

• Length: approx. 36 mm
• Diameter: approx. 6 mm
• Hose compatibility: 4/6 mm CO₂ tubing
• Working pressure: requires ~1.5 bar or higher
• Use: CO₂ systems only (not for air pumps)

🌱 Function / How It Works

• CO₂ gas flows in one direction through the valve
• If pressure drops or stops → valve closes
• Prevents water from traveling back into tubing and equipment

👉 This protects:

• CO₂ regulator
• Solenoid valve
• Bubble counter
• CO₂ cylinder

👍 Advantages

• Strong and rust-resistant stainless steel design
• More reliable than plastic check valves
• Helps extend life of expensive CO₂ equipment
• Simple plug-and-play installation

⚠️ Important Notes

• Must be installed in correct direction (follow arrow)
• Requires pressurized CO₂ system
• Not suitable for low-pressure air pumps
• Place it between bubble counter and diffuser for best protection

🧠 Simple Summary

The Ista Stainless Steel Check Valve is a small but critical safety device in a CO₂ setup. It ensures one-way gas flow and protects your system from water damage, making it highly recommended for any planted aquarium.

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Our customer..

We always make sure that your shipment reaches you as quickly as possible. To achieve this, we hope that you provide us with the following:
A clear address (city - district - street name - landmark near you) + correct mobile number.

Within the Qassim region:
We provide you with delivery service within 24 hours for 25 riyals for orders worth less than 300 riyals. Free for any order above that.

Outside the Qassim region:
* Shipping is made to any location within the Kingdom of Saudi Arabia within 2 to 5 working days with Aramex
*The shipping cost is calculated as follows:
Shipping weight from 1 to 30 kg for 25 riyals. For every additional kilogram, 1 riyal.
Orders exceeding 300 riyals will be shipped for free, up to 15 kg. + 1 riyal for each additional kilogram.

Once we have dispatched your order you will receive a shipping email confirmation, so you know your order is on its way. The shipping email will contain all shipping information so you can keep tracking your order.

Also, you can track your shipping on our website using the tracking reference number. If no one’s at home and we are unable to deliver your item, you will be left a calling card and you will be able to arrange re-delivery.

If you have any questions regarding our delivery service, please email us at info@aquarium.sa

Standard Delivery Service in KSA

All orders purchased before 1 pm Sunday to Thursday will be collected on the same day as per our standard delivery service and they will be dispatched and delivered to you within 2-3 days.

Next-Day Delivery Service in KSA

All orders purchased before 1 pm Sunday to Thursday will be dispatched by our delivery partner which aims to deliver the next working day. *Please note items purchased after 1 pm Thursday on our ‘Next Day Delivery Service’ will be shipped Friday for delivery on Monday. Any items purchased after 1 pm Friday will be shipped Monday for delivery on Tuesday. We do not offer next-day service on weekends. 

Bank Holiday Deliveries & Public Holidays

Aquarium and our delivery partners do not operate during Bank Holidays or any other Public Holidays. We are unable to dispatch or deliver items purchased during this period. We ask you to allow extra time for delivery when placing your order around Bank Holidays and other Public Holidays. Our normal services resume the next working day. Important Notice: Bank Holidays and any other Public Holidays will override any express service you have paid for during checkout. We apologize for any inconvenience this may cause. You can contact our customer service team should you wish to discuss your specific order. You can contact us at info@aquarium.sa