Air Line and Manifolds

About

Airline tubing for hydroponics connects your air pump to air stones and diffusers, delivering oxygen where plants need it most. We stock 4mm and 8mm airline tubing in black, clear, silicone and PVC options. Flexible, durable, and kink-resistant — designed for long runs across reservoirs and grow rooms. Fast UK & worldwide shipping. Why Good Airline Tubing Matters Maintains consistent airflow to all air stones and diffusers Prevents kinks, leaks, and back-pressure on pumps Black tubing helps block light, reducing algae growth Clear tubing makes it easy to trace runs and connections Airline Tubing Sizes 4mm Airline Tubing The standard size for most small-to-medium hydroponic air pumps. Flexible, compact, and compatible with common fittings. 8mm Airline Tubing Wider bore for higher airflow pumps and long runs across larger systems. Ideal for multiple outlet manifolds and commercial-scale setups. Types of Airline Tubing Black Airline Tubing Blocks light to reduce algae growth. Durable and discreet — great for keeping tanks tidy. Clear Airline Tubing Easy to trace air flow paths. Popular in aquarium setups but works for hydro too. Silicone Airline Tubing Soft, flexible, highly kink-resistant, even in cold conditions. PVC Airline Tubing Strong, cost-effective, and resistant to wear. Slightly firmer than silicone but great for long-term setups. Quick Size & Use Guide Size Best For Typical Pump Match 4mm Small–medium tanks, standard air stones 1–4 outlet air pumps 8mm Large reservoirs, high-flow manifolds High-output pumps (≥30 L/min) Airline Tubing FAQs What size airline tubing do I need? Most hobby setups use 4mm airline tubing. Large reservoirs or high-flow pumps may require 8mm tubing to reduce resistance. What’s better: black or clear airline tubing? Black tubing prevents light penetration, helping stop algae build-up. Clear tubing is easier to trace visually. Both perform the same function. Silicone vs PVC airline tubing — what’s the difference? Silicone is so