✅ Aquarium Air Pump Check Valve – Backflow Prevention for Pump Protection

Essential Safety for Your Air System

Protect your air pump and aquarium setup with this one-way check valve, designed to prevent water from backflowing into your air pump and causing damage. A simple yet vital accessory for every aquarium with air-driven equipment.

🔒 Key Features

💧 Backflow Protection
Prevents water from siphoning back into your air pump in the event of power loss or reverse pressure.

🔄 One-Way Flow Design
Allows air to pass through in one direction only, ensuring consistent performance of air stones, sponge filters, and air-driven devices.

🛠️ Easy Installation
Fits standard 4mm (inner diameter) airline tubing. Just insert in-line between your air pump and tank accessories—arrow on valve indicates correct airflow direction.

🧱 Durable & Reliable Construction
Made from high-quality plastic and silicone for long-lasting use in both freshwater and saltwater aquariums.

🐠 Safe for All Aquatic Life
Non-toxic materials ensure safety for fish, shrimp, and plants.

🔧 Recommended Use:

Install the check valve above the waterline for maximum protection and to avoid pump damage due to water backflow.

Give your air pump the protection it needs with this Aquarium Air Check Valve—small investment, big safeguard.