---
product_id: 14074509
title: "PrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black"
brand: "primochill"
price: "326.81 DT"
currency: TND
in_stock: true
reviews_count: 9
category: "Primo Chill"
url: https://www.desertcart.tn/products/14074509-primoflex-lrt-custom-watercooling-flexible-tubing-3-8in-id-x
store_origin: TN
region: Tunisia
---

# 3/8in ID x 1/2in OD precision fit Onyx Black sleek, logo-free design Proudly made in the USA PrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black

**Brand:** primochill
**Price:** 326.81 DT
**Availability:** ✅ In Stock

## Summary

> 🖤 Cool your rig, not your style — PrimoFlex LRT means flawless flow with zero fuss.

## Quick Answers

- **What is this?** PrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black by primochill
- **How much does it cost?** 326.81 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/14074509-primoflex-lrt-custom-watercooling-flexible-tubing-3-8in-id-x)

## Best For

- primochill enthusiasts

## Why This Product

- Trusted primochill brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Enthusiasts:** Top-rated with 4.7 stars from 400+ reviews, a proven choice for millennial pros who demand quality and style.
- • **Durable & Kink-Resistant:** Crafted from premium glass-like PETG material, delivering flexibility without leaks or deformation under pressure.
- • **Complete Cooling Solution:** Includes FREE Liquid Utopia coolant and SysPrep pre-treatment for optimized loop performance right out of the box.
- • **Sleek & Discreet Aesthetic:** Logo-free Onyx Black tubing offers a minimalist, professional look that elevates any custom build.
- • **Precision Fit, Zero Compromise:** Engineered 3/8in inner and 1/2in outer diameter tubing ensures seamless compatibility with premium watercooling fittings.

## Overview

PrimoChill PrimoFlex LRT tubing is a 10-foot, 3/8in ID x 1/2in OD flexible watercooling tube in Onyx Black, made from premium glass-like PETG material in the USA. It comes bundled with Liquid Utopia coolant and SysPrep loop pre-treatment, offering a sleek, logo-free design that’s easy to install, kink-resistant, and highly rated by enthusiasts for leak-free, professional-grade custom cooling setups.

## Description

Buy PrimoChill PrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black: Water Cooling Systems - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: PrimoChill is my favourite when it comes to tubing. They're ACTUALLY clear. - I've used this exact tubing before, but purchased from a different vendor before and for a higher price, so I was happy to see Primochill set up shop here on desertcart. Bottom line is that this is the best tubing I've used. Their PETG tubing and this both have a very high quality feel and have glass-like clarity. At one point I deviated to try a different brand of tubing when making a large-sized purchase on a site that didn't have Primochill available and the tubing wasn't even close to what I had expected. It boasted clear tubing same as this and the pictures seemed evident, but in person looked more like cheap plastic with a thick coating and it unfortunately had to be placed in my system as a replacement as I lazily left the previous set of tubes on its own for too long and it started to show. So instead of using biocide and trying to remedy my old loop, I decided to refresh it and get a new batch of Primochill's tubing. Very happy to be back to quality tubing. It's still a pain to fit onto a couple of Bitspower fittings that are incorporated in the loop, but they play fine with my Monsoon fittings. Also included a couple of pictures of my latest WIP build that really give no justice to the tubing, but I figure I'll share anyway. As a final note, I hadn't even checked the listing enough before purchase to realise it also comes with loop treatment solutions and since I already have resources for that I can't weigh in on how effective those are. I'm sure they do their job though. Might update my review if I ever use them.
Review: Easy to work with, no leaks! - This is great soft tubing! It's very easy to work with, is decently kink resistant, and I've never had a section leak when coupled with high quality fittings like EK. There are two small bottles of priming and cleaning fluid that I used on my loop when reusing some parts and they seemed to work well but I cleaned everything out very thoroughly before hand anyways. Pricing was competitive against other tubing and I always prefer some type of a name brand when dealing with something as inexpensive as tubing that is holding liquid millimeters away from something as expensive as high end computer parts.

## Features

- Logo Free (no print on tube)
- Inner Diameter: 3/8 inch / Outer Diameter: 1/2 inch
- Includes FREE Liquid Utopia and SysPrep–Cooling Loop Pre-Treatment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A9ZDK44 |
| Best Sellers Rank | #212 in Water Cooling Systems |
| Brand | PrimoChill |
| Brand Name | PrimoChill |
| Color | Onyx Black |
| Customer Reviews | 4.7 out of 5 stars 404 Reviews |
| Included Components | Item |
| Item Dimensions L x W | 120"L x 0.5"W |
| Item Length | 120 inches |
| Item Weight | 13.76 ounces |
| Manufacturer | PrimoChill |
| Material | Glass |
| Material Type | Glass |
| Nominal Wall Thickness | 0.0625 inches |
| Outside Diameter | 0.5 inches |
| Product Dimensions | 120"L x 0.5"W |
| UPC | 897337025390 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** PrimoChill
- **Material:** Plastic
- **Color:** Onyx Black
- **Product Dimensions:** 120"L x 0.5"W
- **Item Weight:** 13.76 ounces
- **Nominal Wall Thickness:** 0.0625 inches
- **Outside Diameter:** 0.5 Inches
- **Item Length:** 120 Inches
- **UPC:** 897337025390
- **Manufacturer:** PrimoChill

## Images

![PrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black - Image 1](https://m.media-amazon.com/images/I/513BbXt65uL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ PrimoChill is my favourite when it comes to tubing. They're ACTUALLY clear.
*by S***S on September 18, 2016*

I've used this exact tubing before, but purchased from a different vendor before and for a higher price, so I was happy to see Primochill set up shop here on Amazon. Bottom line is that this is the best tubing I've used. Their PETG tubing and this both have a very high quality feel and have glass-like clarity. At one point I deviated to try a different brand of tubing when making a large-sized purchase on a site that didn't have Primochill available and the tubing wasn't even close to what I had expected. It boasted clear tubing same as this and the pictures seemed evident, but in person looked more like cheap plastic with a thick coating and it unfortunately had to be placed in my system as a replacement as I lazily left the previous set of tubes on its own for too long and it started to show. So instead of using biocide and trying to remedy my old loop, I decided to refresh it and get a new batch of Primochill's tubing. Very happy to be back to quality tubing. It's still a pain to fit onto a couple of Bitspower fittings that are incorporated in the loop, but they play fine with my Monsoon fittings. Also included a couple of pictures of my latest WIP build that really give no justice to the tubing, but I figure I'll share anyway. As a final note, I hadn't even checked the listing enough before purchase to realise it also comes with loop treatment solutions and since I already have resources for that I can't weigh in on how effective those are. I'm sure they do their job though. Might update my review if I ever use them.

### ⭐⭐⭐⭐⭐ Easy to work with, no leaks!
*by S***X on April 2, 2019*

This is great soft tubing! It's very easy to work with, is decently kink resistant, and I've never had a section leak when coupled with high quality fittings like EK. There are two small bottles of priming and cleaning fluid that I used on my loop when reusing some parts and they seemed to work well but I cleaned everything out very thoroughly before hand anyways. Pricing was competitive against other tubing and I always prefer some type of a name brand when dealing with something as inexpensive as tubing that is holding liquid millimeters away from something as expensive as high end computer parts.

### ⭐⭐⭐⭐⭐ Good value and quality kit to do your loop with.
*by E***D on June 11, 2016*

This package has the tubing and comes conviently with two small bottles with 'sysprep' and 'liquid utopia'. The tubing is plasticizer free so that should mean there's no plasticizer that could leach out and clog up small channels in your waterblocks or affect your pump. The tubing itself is is completely clear without markings. It is pretty easy to work with and cut with a sharp knife.. but make sure you have some room to push it over the barb fittings. The trick is to warm up the ends a bit - just with your hands - but not the bit that you are pushing. This makes it just a bit more flexible. The 'sysprep' is supposed to help you clean & line your loop (for 24H) and the liquid utopia is an anti-bacterial and anti-correrossion agent, so you shouldn't need any other coolant additives. The bottles are to be added to a gallon of demin / destilled water, so you should be able to fill up an average loop 3-5 times. All in all no compaints whatsover, good value and comes recommended by water cooling companies like EK.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-18*