
Filter Tubing | 3/8" | LLDPE | NSF
SKU: EA-WF-REV-12
Order before 12:00pm AEST
for same-day dispatch from Wyong NSW
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Same-day dispatch on orders before 12pm AEST.
In stock · ships from Wyong, NSW
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- OD
- 3/8"
- Material
- LLDPE
- Max temp
- 45°C
Specifications
- Type
- High-pressure water filter tubing
- Outer diameter
- 3/8"
- Material
- LLDPE (Linear Low-Density Polyethylene)
- Maximum temperature
- 45°C
- Length options
- 5m, 10m, 20m, 50m
- Applications
- Commercial RO, pump-tank circuits, whole-house feeds, high-flow installations
- Pressure rating
- Mains pressure approved
The 3/8" high-pressure water filter tubing - the larger format LLDPE tubing for commercial RO installations and high-flow circuits where 1/4" creates flow restriction.
When to Use 3/8" Instead of 1/4"
3/8" tubing has roughly 2.5× the cross-sectional flow area of 1/4" tubing - at the same pressure, it carries proportionally more water without significant pressure drop. This matters in:
- Commercial RO systems at 400+ GPD output
- Pump-tank inlet and outlet lines - pumps typically have 3/8" NPT ports
- Whole-house filter feed lines between mains and primary filter
- Drain and reject lines on commercial RO with higher reject volumes
- Multi-stage commercial pre-treatment linking between large cartridge housings
For anything residential, 1/4" tubing is fine. For commercial and high-flow, 3/8" is the right answer.
- NSF/ANSI 42 - aesthetic effects (taste, odour, chlorine)
- NSF/ANSI 58 - reverse osmosis system components
- NSF/ANSI 61 - drinking-water system components, health effects
Material and Specifications
-
Outer diameter: 3/8"
-
Material: LLDPE (Linear Low-Density Polyethylene)
-
Maximum temperature: 45°C
-
Application: commercial RO, pump-tank circuits, whole-house feeds, high-flow installations
Length Options
- 5m - single commercial RO install
- 10m - commercial RO with pump-tank circuit
- 20m - installer pack for multi-job
- 50m - trade roll for commercial installer stock
Installation Cautions
Same as for the 1/4" tubing:
- Maximum 45°C - keep away from fire and high-temperature areas
- Don't bend at sharp 90° angles (use elbow fittings)
- Inspect surface before use
- Cut off used portion before reuse
- Avoid direct sunlight (UV degradation over time)
Key features
- 3/8" high-pressure water filter tubing
- LLDPE material - same as 1/4" tubing, sized up
- Suits commercial RO, pump-tank, high-flow installations
- Available in 5m, 10m, 20m, or 50m lengths
- Maximum temperature 45°C
- ~2.5× the flow capacity of 1/4" tubing at the same pressure
Recommended for
- Commercial RO installations at 400+ GPD output
- Pump-tank inlet and outlet circuits
- Whole-house filter feed lines
- Commercial RO drain and reject manifolds
- Multi-stage commercial pre-treatment
Ready to order?
Order before 12:00pm AEST on a business day for same-day dispatch from Wyong NSW. See shipping details.
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Australian-owned
Real Wyong NSW warehouse and showroom, with local product support.
Compatibility made clear
Connections, dimensions, finishes and installation requirements are listed before purchase.
Compliance details
WaterMark and WELS information is shown where it applies to the specific product.

Filter Tubing | 3/8" | LLDPE | NSF
$24.95 AUD

