Aquarium air/Co2 Airline tap – 4mm

The Aquarium air/Co2 Airline tap is perfect for controlling and adjusting airflow in single or multiple aquarium setups.

• Designed to fit standard 4mm internal and 6mm external silicone or PVC airline tubing with a secure connection.
• Ideal for use in freshwater, marine, and pond aquariums, as well as fish room air systems.
• Perfect for regulating air pressure to sponge filters, breeder boxes, and air stones.
• Easily adjust flow to individual tanks from a single air pump source.
• Helps balance airflow across multiple aquarium setups in fish rooms or breeding systems.
• Constructed from high-grade plastic for strength, durability, and long-term use.
• Compatible with all standard aquarium airline tubing and air systems.

Aquarium air/Co2 Airline tap are great for custom DIY air systems in both home and commercial aquariums.
Simple to install and adjust without tools or additional fittings.
Provides fine control over air delivery to each device or tank.
Reduces noise and prevents over-aeration in smaller tanks.
Affordable and reusable—an essential tool for aquarium hobbyists and breeders.
Works well in ponds, bio-filters and multi-bay filtration units.
Reliable and leak-proof when used with quality 4/6mm air tubing.
Ideal for any aquarium needing precise air control and improved oxygen management.