






🔧 Elevate your plumbing game with John Guest’s flexible, durable, and certified tubing!
John Guest’s 3/8-inch blue LLDPE tubing delivers professional-grade flexibility and durability for plumbing and water systems. Made from FDA-approved, NSF-certified materials, it ensures safe, odorless, and tasteless water flow. Rated for pressures up to 150 psi at 70°F, this tubing is compatible with most OD connectors and comes on an easy-to-handle spool, making it the trusted choice for millennial managers who demand reliability and efficiency in their workspace.

















| Brand | John Guest |
| Color | Blue |
| Item Weight | 7.2 ounces |
| Material | Polyethylene (PE) |
| Maximum Pressure | 150 Pound per Square Inch |
| Product Dimensions | 300"L x 0.38"W |
M**S
Typical Excellent John Guest Quality
These days, it isn't common to find a brand that ensure quality throughout. Every John Guest product I have used works flawlessly. I use this tubing for a restaurant's water purification system, and over several years, I have never had a leak, kink, or any other problem. The fittings work flawlessly every time, despite my numerous modifications of the system. The tubing is flexible enough, although you need to uncoil it and lay it out straight when you first open it or it might want to stay as a coil. Although 3/8" LDPE tubing and compatible press fit fittings are probably sold by other companies, I will stick with John Guest so I won't have to worry.
A**R
Basic tubing but works great.
Used this tubing to move an under sink water filter to another location. Worked perfectly.
K**G
The Guest Tubing is Best
You might wonder who could possibly screw up tubing, but once you have tubing pop out of a fitting and water runs all over the place, you'll understand. Guest tubing handles quite a bit of pressure, and the Guest fittings *really* grip the tubing to keep it in place. I'm quite happy with the brand, and won't buy any other brand fittings and tubing again. Not worth it unless someone can prove me wrong. No, I did not get paid for this review, nor did I get free product for the review. I'm just tired of imported garbage from who knows where that does not work but is *cheep*.
D**.
Great price for tubing
Needed this tubing for running my RO system to the refrigerator. Worded out great and the length was just what I needed.
S**G
Happy
Name brand, reasonable price, shipped quickly. Will be using this with the air gap on my RO filter system to reduce the gurgling noises by piping it to the basement.
K**R
Nice RO tube
Very heavy duty and very tight in the quick insert connectors.
B**.
Works great!
Used it for a hydroponic watering system. Modular and easy to configure for my needs. As I expand, I will be back to buy more.
W**L
Great product for water filter install
Great product for drinking water.
Trustpilot
1 month ago
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