19mm Kool Tube

Stop a warm nutrient line undoing your root health

The 19mm Kool Tube from Hydro Crop Shop carries nutrient solution around a hydroponic system while shielding it from heat and light, using the same dual-core build as the smaller Kool Tube pipes: a white reflective outer layer and a black UV-blocking inner layer. At 19mm bore it's a step up in size, suited to main feed lines carrying more volume to a bank of drippers or a larger system, where warm solution and light ingress cause the most trouble.

Key Benefits

• Dual-core design reflects heat and blocks UV to keep solution cooler for longer.
• 19mm bore handles higher flow than smaller feed lines.
• Flexible pipe routes easily around reservoirs, pumps and tables.
• UV-blocking inner discourages algae growth inside the line.
• Compatible with standard 19mm irrigation fittings.

Fixing warm solution and light getting into the line

Solution that warms on its way to the roots holds less dissolved oxygen and gives root pathogens an easier foothold, while light reaching it feeds algae inside the pipe. Both show up as slow growth, weak roots and frequent reservoir cleaning. The reflective, light-blocking build keeps the reservoir-to-plant run working for you.

How to Use

• Cut to length and fit using standard 19mm push-fit or barbed connectors.
• Position away from direct light and heat sources such as lamps or heaters.
• Keep runs as short and kink-free as practical to maintain flow to the drippers.