1/4" 3/8" PE Pipe Food Grade Water Purifier Pipe Hi-quality Soft Tube Aquarium Flexible Hose Reverse Osmosis Water Pipe
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SKU: 14:1254#3l8 Inch Pipe;200009720:201484781#5m(16.5ft)
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Food-Grade PE Water Purifier Tubing — 1/4″ & 3/8″ • High-Flex • RO/DI & Aquarium-Safe • 100 m Rolls
Build clean, reliable water lines with this food-grade polyethylene (PE) soft tube engineered for reverse osmosis (RO/DI) systems, water purifiers, refrigerators/ice makers, and aquarium use. The tubing’s smooth bore minimizes pressure drop and biofilm adherence, while the PE compound provides odor-free, non-toxic performance with excellent flexibility, tensile strength, and chemical resistance to common acids/alkalis. Available in the most common OD sizes for RO: 1/4″ and 3/8″.
Key Features & Benefits
- Food-Grade PE: Non-toxic, no odor; smooth inner wall helps maintain water taste and clarity.
- High Flex & “Memory” Recovery: Easy routing in tight spaces with minimal kinking; rebounds after bends.
- Chemical & Temperature Resistant: Resists common cleaning agents; wide service temperature for household RO lines.
- Low Pressure Loss: Smooth I.D. supports stable flow to membranes, filters, and faucets.
- Bulk Efficiency: Standard 100 m/roll for installers and OEM builds; custom lengths available.
Variant Specifications
| Size | Inner Diameter | Outer Diameter | Nominal Wall | Temperature Range* | Max Working Pressure** | Typical Uses |
|---|---|---|---|---|---|---|
| 1/4″ | 4.0 mm | 6.5 mm (≈ 1/4″ 6.35 mm) | ≈ 1.0 mm | 5–45 °C | 8 bar (0.8 MPa) | Standard RO lines: membrane → post filter → faucet, fridge/ice maker feed, aquariums |
| 3/8″ | 6.35 mm (¼″) | 9.5 mm (3/8″) | ≈ 1.0 mm | −20–65 °C | 1.5 MPa (≈ 15 bar) @ 20 °C | High-flow RO feeds, storage tank runs, low-restriction drops, refrigerator supplies |
*Use within appliance/manufacturer limits. **Pressure ratings are nominal at 20 °C; derate at higher temperatures.
Technical Details
| Material | Polyethylene (PE), food-grade |
| Color | — (assorted colors available on request) |
| Length per Roll | 100 m (standard pack) |
| Chemical Resistance | Good resistance to dilute acids/alkalis; not recommended for solvents/fuels |
| Applications | RO/DI systems, water purifiers, refrigerators, ice makers, aquariums, beverage lines (non-carbonated), lab/industrial water |
| Fitting Compatibility | Push-to-connect (quick-connect) and barb fittings sized to OD/ID; verify OD tolerance with your fittings |
Installation Notes
- Cut ends square with a sharp tube cutter for reliable push-fit sealing.
- Observe flow direction on RO modules; avoid tight bends near ferrules to prevent ovalizing.
- Flush new lines before service; periodically sanitize per your system manufacturer’s guidelines.
- For potable installations requiring listed approvals (e.g., NSF/WRAS), verify certification for your market/spec.
Wholesale & Shipping
- Installer/OEM pricing available for bulk orders; standard pack 100 m/roll.
- We can ship by air or sea. Contact us for the best shipping method and cost to your location.
- If quoted shipping appears high, message us—we’ll optimize the route and carrier for savings.
What’s in the Box
- PE water line tubing — selected size (1/4″ or 3/8″), standard 100 m roll
Frequently Asked Questions (FAQs)
1) Is this tubing safe for drinking water?
The material is food-grade PE. If your project requires specific listings (e.g., NSF/ANSI, WRAS), please confirm compliance for your market before use.
2) Which size do most RO systems use?
1/4″ OD is most common for RO faucet/post-filter lines; 3/8″ OD is used where higher flow is desired (tank feed, fridge lines).
3) Will it fit standard push-to-connect fittings?
Yes—select fittings sized to the tubing OD (1/4″ or 3/8″). Always cut square and fully insert to the collet stop for a leak-free seal.
4) What pressure can it handle?
1/4″: up to 8 bar (0.8 MPa) at ~20 °C. 3/8″: up to 1.5 MPa (≈15 bar) at 20 °C. Derate at higher temperatures.
5) Can I use it for aquarium systems?
Yes—PE is commonly used for RO/DI aquarium supply lines. Rinse/flush thoroughly before connecting to tanks.
6) Is it suitable for hot water?
Follow the temperature limits for each size. RO/DI lines are typically cold feed; avoid sustained hot-water service unless specified by your appliance.
7) Can I run carbonated beverages?
Not recommended. CO₂ and syrups may require beverage-rated tubing and specific certifications.
8) How tight can I bend it?
Maintain a gentle bend radius (≥ 5–7× OD) to avoid kinking and flow restriction, especially near fittings.
9) What if I need colored tubing?
Color options (blue, red, black, white, etc.) are available on request for line identification and aesthetics.
10) Do you offer shorter lengths?
Yes—custom cut lengths can be arranged for projects. Contact us for MOQ and lead time.
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