Icetube 19mm Flexi Pipe - Heat & UV Reflective - Keeps Nutrient Solution Cooler
Best for: growers whose reservoir or feed lines run warm, especially in summer, and who want to keep nutrient temperature down without extra equipment.
Our thoughts
Worth knowing before you buy: Icetube is the same pipe as the older "Iceline" product under a new name, not a different or improved version. That's not a problem, it just means you shouldn't expect anything new if you've used Iceline before. What it does well is a genuinely simple fix, a dual-layer pipe wall that keeps feed lines a few degrees cooler than plain black poly pipe, for not much more than the price of standard tubing.
Icetube 19mm Flexi Pipe uses a dual-core design to lower the temperature of nutrient solution as it travels through your feed lines. A white outer layer reflects light and reduces heat absorption into the pipe, while a black inner layer blocks UV from reaching the solution inside, tackling both major sources of pipe heating at once.
Keeping nutrient solution below around 21°C matters because warmer solution holds significantly less dissolved oxygen, and reservoirs above that threshold become a much more welcoming environment for pathogenic bacteria and fungi. Every degree you can shave off feed line temperature, particularly during summer, reduces that risk and supports a healthier root zone.
How it compares
Icetube's main comparison point is standard black poly pipe, plus its own identically-specced sibling product sold under a different name.
- Versus standard black poly pipe: uninsulated black pipe absorbs heat readily in warm conditions, while Icetube's reflective outer and UV-blocking inner layer are built specifically to resist that heat gain.
- Versus Iceline: Icetube is the same product, same manufacturer, sold under a different name, so there's no performance difference to weigh up between the two.
- Versus active reservoir chillers: a chiller actively cools solution and will do more in extreme heat, but at far higher cost; Icetube is a passive, low-cost first line of defence for feed lines.
Not a substitute for a chiller in a genuinely hot grow room, but a cheap, easy upgrade over plain pipe for most setups.
Usage guidance
Simple to fit in place of standard flexible pipe, no special tools needed.
Installation
Run Icetube in place of standard black poly pipe anywhere feed lines are exposed to ambient heat or light, particularly runs near lighting or in warm rooms.
Sizing
Choose 19mm to match standard IWS and dripper system fittings; other diameters are available if your system uses a different pipe size.
Ordering length
Sold by the metre, so measure your run length before ordering, or order a full roll if you're fitting out a larger system.
Technical specifications
- Diameter: 19mm
- Construction: Dual-core, white reflective outer / black UV-blocking inner
- Function: Reduces nutrient solution heat gain and UV exposure in feed lines
- Also sold as: Iceline (same specification, different name)
- Target nutrient temperature: Around 18°C, avoiding temperatures above 21°C
- Format: Sold by the metre
- Compatible fittings: Standard 19mm irrigation pipe connectors
Who this is for
- Growers running feed lines near lights or in warm rooms during summer
- Anyone building or upgrading an IWS dripper or drip-fed system
- Growers who've had reservoir temperature or algae problems and want a cheap first fix
- Not a replacement for a dedicated reservoir chiller in a genuinely hot environment
Our take
A small, sensible upgrade over plain black pipe, particularly if your feed lines run anywhere near lighting or in a warm room during summer months.
Reliable performance without overpaying for features you don't need.
