Our 4mm airline tubing, available for purchase by the metre, offers excellent durability and flexibility, making it ideal for a variety of aquaculture setups. Manufactured from high-quality materials, it resists kinks, wear, and chemical corrosion, ensuring reliable airflow for your systems. Its consistent inner diameter provides steady air delivery, making it a dependable choice for both hobbyists and professionals seeking long-lasting airline solutions. Add 1 quantity for every meter you need.