Description
Product Overview
Penn-Plax Standard 3/16” Airline Tubing is a clear, flexible plastic tubing designed for aquariums, offering reliable air flow and oxygen delivery. With an inner diameter of 4 mm and outer diameter of 6 mm, it fits standard air pumps and accessories. The tubing is resistant to kinking and cracking, ensuring long-lasting performance in both freshwater and saltwater environments. Key specifications include a length of 25 feet, maximum pressure of 55 PSI, and nominal wall thickness of 1 mm, making it a versatile and durable solution for fish-keeping enthusiasts.

Usage
This airline tubing is ideal for indoor aquariums, connecting air pumps to airstones, filters, or other oxygenation devices. It is suitable for hobbyists and professional aquarists who need consistent air supply to maintain healthy water conditions. Use it in home fish tanks, breeding setups, or aquatic displays to prevent water siphoning and ensure efficient oxygen circulation. The clear design blends seamlessly with any aquarium decor, while its flexibility allows for easy routing around tank equipment.
Why Choose Us
Penn-Plax has been a trusted manufacturer of pet supplies since 1965, specializing in high-quality aquarium products. This airline tubing is made from premium materials that resist wear and tear, backed by positive customer reviews and a top ranking in aquarium accessories. Its clear, non-toxic construction ensures safety for all fish, and the variety of sizes available allows for customization to fit any tank setup. Choose Penn-Plax for reliability, durability, and expert craftsmanship in every product.
Key Features
- Clear and flexible plastic tubing for easy visibility and installation
- Resists kinking and cracking to maintain consistent air flow
- Safe for use in both freshwater and saltwater aquariums
- Available in multiple lengths to suit different tank sizes and needs
- Durable construction with a maximum pressure rating of 55 PSI
FAQ
What is the inner diameter of this airline tubing?
The inner diameter is 4 mm, which is standard for most aquarium air pumps and accessories.
Can I use this tubing for saltwater tanks?
Yes, it is safe for both freshwater and saltwater aquariums, as it is made from non-toxic, durable materials.
How do I prevent the tubing from kinking?
The tubing is designed to be flexible and resistant to kinking, but avoid sharp bends and secure it properly to maintain optimal air flow.
What lengths are available?
It comes in various lengths, including 8 feet, 20 feet, 25 feet, and 500 feet, in both plastic and silicone options.
Is this tubing easy to cut to size?
Yes, you can easily cut it with scissors to fit your specific setup without fraying or damage.




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