Growmax Replacement Pipe — PTFE Rigid Tubing for Water Filtration & Hydroponics
Best for: Growers building or maintaining water treatment systems, DIY hydroponic setups, and anyone needing food-grade rigid piping that won't kink or collapse
Our thoughts
If you're assembling a water filtration system or need replacement tubing for an existing Growmax setup, this does exactly what it should. PTFE rigid pipe holds its shape, resists corrosion, and keeps your water delivery clean. One we recommend for anyone serious about water quality in their growing system.
Growmax Replacement Pipe is a rigid PTFE (Polytetrafluoroethylene) tubing system designed for building, extending, or repairing water filtration, reverse osmosis, and hydroponic delivery systems. Unlike flexible tubing, rigid pipe won't kink under pressure, maintains consistent water flow, and integrates seamlessly with Growmax water treatment equipment. It's lightweight, food-safe, and corrosion-resistant — proper kit for serious water management.
How it compares
Rigid PTFE pipe sits above standard flexible tubing and generic PVC alternatives.
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vs. Flexible tubing: Rigid pipe doesn't kink, collapse, or flatten under pressure. Better for permanent installations and high-flow applications.
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vs. Standard PVC: PTFE is food-grade rated, more chemically resistant, and engineered specifically for hydroponic water treatment. Generic hardware store PVC works, but isn't optimised for nutrient or filtration systems.
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vs. Growmax alternatives: This is the component that makes your filtration system work. Pairing it with Growmax filters (Eco Grow, Power Grow, Mega Grow ranges) gives you a complete, matched system.
You're paying a fair bit more than hardware store tubing, but you're getting food-safe, hydroponic-specific pipe that won't degrade or contaminate your water supply.
Usage guidance
Growmax Replacement Pipe works across several growing applications:
Water filtration systems
Use this as the main delivery line between your water source and Growmax filter units (reverse osmosis, de-ionisation, or carbon filtration). The rigid structure maintains stable pressure and prevents siphoning issues.
Reverse osmosis setup
Connect between your RO unit and storage or directly to your growing system. PTFE won't degrade under the osmotic pressure of RO systems.
DIY hydroponic system building
Ideal as the primary water transport line in hand-built systems. Smaller bore sizes (1/4", 3/8") work well for nutrient delivery networks; 1/2" handles higher-volume water movement.
System repair and customisation
Use as replacement sections in existing Growmax installations, or extend your system with additional pipe runs. PTFE doesn't require specialist tools — cuts cleanly with a standard saw.
Technical specifications
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Material: Polytetrafluoroethylene (PTFE)
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Internal diameters available: 1/4 Inch, 3/8 Inch, 1/2 Inch
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Lengths: 5 metres or 10 metres per unit
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Construction: Rigid (non-flexible)
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Key properties: Food-grade, corrosion-resistant, lightweight, maintains shape under pressure
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Application: Potable water systems, filtration networks, hydroponic delivery
Who this is for
- Growers with existing Growmax water filtration systems needing replacement or extension tubing
- Anyone building a DIY reverse osmosis or water treatment setup
- Experienced hydroponic growers who take water quality seriously
- Systems requiring permanent, pressure-stable piping rather than temporary flexible alternatives
- Growers scaling up from small setups and needing proper plumbing components
Our take
This is the tubing that keeps your water clean and your system reliable. PTFE rigid pipe won't kink, won't collapse, and won't compromise your water quality — which matters if you've invested in good filtration.
If you're running Growmax filters or building a proper water treatment system, this is worth picking up in the size you need. Buy it in 10 metre lengths if you're assembling multiple runs — it stores easily and you'll use it. Good time to buy while clearance stock lasts.
