---
product_id: 7971517
title: "Maxline M7500 Master Kit, 3/4-Inch x 100-Feet"
brand: "maxline"
price: "€ 681.37"
currency: EUR
in_stock: true
reviews_count: 8
category: "Maxline"
url: https://www.desertcart.es/products/7971517-maxline-m7500-master-kit-3-4-inch-x-100-feet
store_origin: ES
region: Spain
---

# 100 feet flexible, bendable piping roll Leak-proof system up to 200 psi 3/4-inch diameter for optimal airflow Maxline M7500 Master Kit, 3/4-Inch x 100-Feet

**Brand:** maxline
**Price:** € 681.37
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your workspace with leak-proof airflow mastery!

## Quick Answers

- **What is this?** Maxline M7500 Master Kit, 3/4-Inch x 100-Feet by maxline
- **How much does it cost?** € 681.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/7971517-maxline-m7500-master-kit-3-4-inch-x-100-feet)

## Best For

- maxline enthusiasts

## Why This Product

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

## Key Features

- • **Complete Master Kit:** Includes all necessary fittings, outlets, and drain valves for a fully customizable compressed air system.
- • **Durable & Rust-Resistant:** Aluminum and polyethylene materials prevent rust and buildup, guaranteeing long-term, maintenance-free performance.
- • **Flexible Aluminum Core Design:** Bend radius of 6-8 inches lets you create custom layouts with fewer joints and faster installs.
- • **Unmatched Leak-Proof Reliability:** Smooth interior walls and O-ring sealed fittings ensure zero leaks under high pressure (200 psi at 73°F).
- • **Effortless Pro-Grade Installation:** Step-by-step guide and included tools make setup a breeze—no threading or gluing required.

## Overview

The Maxline M7500 Master Kit is a 3/4-inch by 100-foot industrial-grade compressed air piping system featuring flexible aluminum core tubing, leak-proof O-ring fittings, and a complete set of adapters and outlets. Designed for easy installation without threading or gluing, it supports pressures up to 200 psi and resists rust and buildup, making it the ultimate upgrade for professional-grade air compressor setups.

## Description

Maxline M7500 Master Kit, 3/4-Inch x 100-Feet - Air Compressor Accessories - desertcart.com

Review: I'm really happy with this, and really happy I dragged my feet on this purchase for years! - Although I've only had this system installed for a week, I'm tentatively giving it 5 stars. Purely based on other reviews I have some concerns for down the road, but right now everything seems really, really nice. Based on questions people have asked and some other reviews, let me throw some stuff out there: The 3/4" tube is a little cumbersome to uncoil. You can make the machine on rapidair's website or something similar, but I had no problems getting the pipe pretty darned straight. My install consisted of several ~15' runs, the longest was 25'. I had a helper hold one end of the coil and then walked it out, holding it down with my feet as I walked with some really cushy flip flops. The end result was a *really* wide arc that was easy to straighten by hand. It was not a big deal. I measured out each segment, then cut a length of the straightened pipe adding about a 1' for slop & mistakes. I planned so that each segment would only have one angle to avoid frustration. Starting with the longest straight, I connected the pipe to whatever fitting was there (sometimes a tee, sometimes an outlet) and then walked the pipe into the corner, forming it by hand as I went. Once it was roughly in the right place, I installed one of the pipe clips to keep it in place, then laid out the other leg of the run. Aside from the straightening, I laid 90' of this by myself without help. It's not tough. Pro Tip: Read the directions. They are explicit and on-point. All NPT fittings should be wrapped with two wraps of Teflon tape. All NPT fittings should be doped (although I prefer Permatex High Performance Thread Sealant). Build the outlets (plug, M8005 fitting, 50120 drain, and air fitting of your choice) in ADVANCE. Install the outlets IN ADVANCE. No treatment (tape or dope) is required on the Maxline pipe fittings - the O-rings seal them, not the threads. As such, when cutting the pipe, it MUST be STRAIGHT, a perfect 90 degrees, and you must use the reamer to make sure the pipe is round (not ovalled) and properly beveled. Otherwise it may not seal properly on the fittings. Leave some extra when measuring the pipe in case you need to re-cut! If I have any complaints, it's that the cutter they supply is difficult to use - the "mouth" should be 2-3" wide to ensure a good, straight cut. Oh well! Finally, do not try to assemble the M8005 fittings onto the pipe first. They are not swivel fittings. The NPT side of the fitting must be installed first, then install the pipe onto it. When you finally assemble the pipe onto the M8005 (last step!) be sure you tighten the collar at least 3/4 turn. There seems to be some confusion about the three #M81010 outlet blocks that come with this kit. Each outlet has three ports - the top, back, and front part are all 1/2" NPT. The idea is to connect the pipe to the outlet at the TOP or BACK (such as through a wall) and then use the NPT plug to plug whichever one you did not use. Three outlets = three plugs. You could use the other port to "daisy chain" to another outlet, but that would be awkward. The front port is for your tool or a quick-disconnect but, again, could be used to daisy chain. I used Dixon Valve DC2504 (from desertcart) as they are 1/2" NPT -> 3/8" (industrial-style, there is an automotive style equivalent) quick disconnect, so no adapters needed. You can use Dixon Valve DCP2103 on your tool - it's a matching 3/8" quick disconnect with a 1/4" NPT. Easy! The bottom port is 3/8" NPT and is *intended* to house the drain valve. This makes it easy to depressurize the pipe system and drain water that *will* accumulate in the outlet. You *can* use this port to daisy chain or connect tools, but it's *supposed* to be a water drain. Three #50120 are included with this kit for this purpose! I ordered an extra tee (#M8011) with this kit with two purposes in mind: It broke up what would have been a very long (40'), very cumbersome run of tube *and* provided a space to mount an overhead hose reel. Plugging in and storing a hose would have been annoying, so I just installed an overhead reel permanently. #M8005 goes straight from the 3/4" pipe to a 1/2" NPT thread. I picked up a 1/2" NPT shutoff valve (in case I need to remove the hose for some reason, and so the hose doesn't have to hold 90psi all the time) but no quick disconnect to remove a restriction point. The hose connects directly to the shutoff valve. Easy! (Remember, assemble backwards - reel to shutoff valve, shutoff valve to M8005 fitting, *then* M8005 to pipe!) My final install looks like: Big ol' 80 gallon compressor -> shutoff valve -> flexible jumper (ALWAYS CRITICAL) -> PneumaticPlus SAU4020M-N06BG (filter/regulator) @ 100psi -> pipe system. The pipe system has essentially four legs - one goes from the garage into the shop (through a wall), one goes to two outlets on opposite sides of the garage, one goes to the second shutoff valve & overhead reel, and one goes to an outlet on the back wall, incorporating a SECOND regulator/filter for paint. I'm really happy with this, and really happy I dragged my feet on this purchase for years. Rapidair has a complete setup here, with all the parts & pieces you need to fully customize your solution. Six days later I have seen no leaks anywhere - and I'm literally itching to use my bigger air tools! :) I have yet to see whether the pipe will take a hit (it's on walls and in rafters, so hopefully it won't have to!) and what happens over time... until then, 5 stars!
Review: Great garage upgrade-should have installed this years ago! - I had been having an issue with moisture in my air compressor lines and started doing some research on dryers and line systems. As part of the solution for the moisture, I ended up getting this RapidAir 3/4" 100' kit to get drains all around my shop. Prior to this, I only had one port for connecting the air compressor and was getting water every time I was using my compressor. Well, what a great product! For the money you can't beat it. It took me about 6 hours to install the kit but I was taking my time and wanted to think through where to put the ports. The line is pretty stiff but I was able to get it straight enough for my OCD by bending it and eyeballing the line as I unrolled it. Once it was up, if a spot looked too low or high on the wall I would just push up and adjust it and it stayed in place and it looks great. I did the install by myself so it was definitely something that anyone can do. So far no leaks and I love the new "universal" couplers that I got at Lowes for the ports.

## Features

- EASY INSTALLATION – From the moment you start operating our industrial quality compressed air piping system you will enjoy its trouble-free safe operations. But first, you will like the easy installation of our air compressor hose kit. Just have a plan as to the location of the air compressor and where you are going to mount the compressed air outlets, follow the step-by-step instructions we provide, and very soon you will have it seamlessly up and running.
- NO LEAKS AIR SYSTEM – We offer a complete leak-proof compressed air supply solution for your shop or a garage, rolling up to 100 ft. Smooth interior walls of our piping rolls will never build upscale or rust. It is much more efficient than iron or PVC piping, and while reliably holding pressure, operates at 200 psi at 73F and 160 psi at 140F.
- EASY TO CUT AND TERMINATE – No more pipe cutting, messy threading, or gluing! We provide you with a simple tool to make it effortless. MaxLine Master Kit has all components necessary to complete the installation.
- BENDABLE AND FLEXIBLE - What a relief if compared with iron, copper, or PVC piping! Rolls with fewer joints allow not only faster installation but also make it easy to bend and keep in place. The aluminum lining of our rolls can create rigid but flexible layouts. The 3/4-inch inside diameter of the pipe has a bend radius of 6-8 inches and can be bent to any shape.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Maxline |
| Color | Plain |
| Connector Type | Adapter |
| Item dimensions L x W x H | 21 x 21 x 8 inches |
| Material | Aluminum, Polyethylene |
| Size | 3/4" x 100' |

## Product Details

- **Size:** 3/4" x 100'
- **Material:** Aluminum, Polyethylene
- **Brand:** Maxline
- **Color:** Plain
- **Item dimensions L x W x H:** 21 x 21 x 8 inches
- **Connector Type:** Adapter
- **Thread Size:** 0.75 inch
- **Exterior Finish:** Machined
- **Thread Type:** NPT
- **Item Weight:** 9.07 Kilograms

## Images

![Maxline M7500 Master Kit, 3/4-Inch x 100-Feet - Image 1](https://m.media-amazon.com/images/I/71O7IHJ51AL.jpg)

## Questions & Answers

**Q: Is the 3/4 the i.d. or the o.d.?   What is the o.d.**
A: The tubing in the 3/4 Maxline M7500 master kit is .80 inch inside diameter x 1.00 inch outside diameter

**Q: I have 175 psi.  The mfg recommends keeping the system at 175 psi and the regulating the pressure where needed.  Will this stand up to that?**
A: Yes, the system is rated for 200 psi.  For any air system, its best to regulate the air system to 100-120 psi  at the compressor, with an inline regulator.  Most air tools have a maximum pressure rating of 120 psi and that protects them.

**Q: Will standard pex-al-pex compression fittings work?**
A: Yes they will work. This line IS pex-al-pex.

I have used the fittings myself so I know it works. Also, the aluminum inner sheath is the giveaway that it's pex-al-pex.

**Q: Is there 3 brass plugs included for the outlets**
A: You'll need something to plug one hole for each of the outlets. It does come with 3 plugs but there's a hole in the back also. I had to get more plugs for the fronts

## Customer Reviews

### ⭐⭐⭐⭐⭐ I'm really happy with this, and really happy I dragged my feet on this purchase for years!
*by T***G on March 13, 2017*

Although I've only had this system installed for a week, I'm tentatively giving it 5 stars. Purely based on other reviews I have some concerns for down the road, but right now everything seems really, really nice. Based on questions people have asked and some other reviews, let me throw some stuff out there: The 3/4" tube is a little cumbersome to uncoil. You can make the machine on rapidair's website or something similar, but I had no problems getting the pipe pretty darned straight. My install consisted of several ~15' runs, the longest was 25'. I had a helper hold one end of the coil and then walked it out, holding it down with my feet as I walked with some really cushy flip flops. The end result was a *really* wide arc that was easy to straighten by hand. It was not a big deal. I measured out each segment, then cut a length of the straightened pipe adding about a 1' for slop & mistakes. I planned so that each segment would only have one angle to avoid frustration. Starting with the longest straight, I connected the pipe to whatever fitting was there (sometimes a tee, sometimes an outlet) and then walked the pipe into the corner, forming it by hand as I went. Once it was roughly in the right place, I installed one of the pipe clips to keep it in place, then laid out the other leg of the run. Aside from the straightening, I laid 90' of this by myself without help. It's not tough. Pro Tip: Read the directions. They are explicit and on-point. All NPT fittings should be wrapped with two wraps of Teflon tape. All NPT fittings should be doped (although I prefer Permatex High Performance Thread Sealant). Build the outlets (plug, M8005 fitting, 50120 drain, and air fitting of your choice) in ADVANCE. Install the outlets IN ADVANCE. No treatment (tape or dope) is required on the Maxline pipe fittings - the O-rings seal them, not the threads. As such, when cutting the pipe, it MUST be STRAIGHT, a perfect 90 degrees, and you must use the reamer to make sure the pipe is round (not ovalled) and properly beveled. Otherwise it may not seal properly on the fittings. Leave some extra when measuring the pipe in case you need to re-cut! If I have any complaints, it's that the cutter they supply is difficult to use - the "mouth" should be 2-3" wide to ensure a good, straight cut. Oh well! Finally, do not try to assemble the M8005 fittings onto the pipe first. They are not swivel fittings. The NPT side of the fitting must be installed first, then install the pipe onto it. When you finally assemble the pipe onto the M8005 (last step!) be sure you tighten the collar at least 3/4 turn. There seems to be some confusion about the three #M81010 outlet blocks that come with this kit. Each outlet has three ports - the top, back, and front part are all 1/2" NPT. The idea is to connect the pipe to the outlet at the TOP or BACK (such as through a wall) and then use the NPT plug to plug whichever one you did not use. Three outlets = three plugs. You could use the other port to "daisy chain" to another outlet, but that would be awkward. The front port is for your tool or a quick-disconnect but, again, could be used to daisy chain. I used Dixon Valve DC2504 (from Amazon) as they are 1/2" NPT -> 3/8" (industrial-style, there is an automotive style equivalent) quick disconnect, so no adapters needed. You can use Dixon Valve DCP2103 on your tool - it's a matching 3/8" quick disconnect with a 1/4" NPT. Easy! The bottom port is 3/8" NPT and is *intended* to house the drain valve. This makes it easy to depressurize the pipe system and drain water that *will* accumulate in the outlet. You *can* use this port to daisy chain or connect tools, but it's *supposed* to be a water drain. Three #50120 are included with this kit for this purpose! I ordered an extra tee (#M8011) with this kit with two purposes in mind: It broke up what would have been a very long (40'), very cumbersome run of tube *and* provided a space to mount an overhead hose reel. Plugging in and storing a hose would have been annoying, so I just installed an overhead reel permanently. #M8005 goes straight from the 3/4" pipe to a 1/2" NPT thread. I picked up a 1/2" NPT shutoff valve (in case I need to remove the hose for some reason, and so the hose doesn't have to hold 90psi all the time) but no quick disconnect to remove a restriction point. The hose connects directly to the shutoff valve. Easy! (Remember, assemble backwards - reel to shutoff valve, shutoff valve to M8005 fitting, *then* M8005 to pipe!) My final install looks like: Big ol' 80 gallon compressor -> shutoff valve -> flexible jumper (ALWAYS CRITICAL) -> PneumaticPlus SAU4020M-N06BG (filter/regulator) @ 100psi -> pipe system. The pipe system has essentially four legs - one goes from the garage into the shop (through a wall), one goes to two outlets on opposite sides of the garage, one goes to the second shutoff valve & overhead reel, and one goes to an outlet on the back wall, incorporating a SECOND regulator/filter for paint. I'm really happy with this, and really happy I dragged my feet on this purchase for years. Rapidair has a complete setup here, with all the parts & pieces you need to fully customize your solution. Six days later I have seen no leaks anywhere - and I'm literally itching to use my bigger air tools! :) I have yet to see whether the pipe will take a hit (it's on walls and in rafters, so hopefully it won't have to!) and what happens over time... until then, 5 stars!

### ⭐⭐⭐⭐⭐ Great garage upgrade-should have installed this years ago!
*by S***. on September 23, 2021*

I had been having an issue with moisture in my air compressor lines and started doing some research on dryers and line systems. As part of the solution for the moisture, I ended up getting this RapidAir 3/4" 100' kit to get drains all around my shop. Prior to this, I only had one port for connecting the air compressor and was getting water every time I was using my compressor. Well, what a great product! For the money you can't beat it. It took me about 6 hours to install the kit but I was taking my time and wanted to think through where to put the ports. The line is pretty stiff but I was able to get it straight enough for my OCD by bending it and eyeballing the line as I unrolled it. Once it was up, if a spot looked too low or high on the wall I would just push up and adjust it and it stayed in place and it looks great. I did the install by myself so it was definitely something that anyone can do. So far no leaks and I love the new "universal" couplers that I got at Lowes for the ports.

### ⭐⭐⭐⭐⭐ Difficult to Install, but TOTALLY worth it.
*by S***. on October 30, 2020*

I'll be the first to say that I invented many new words while installing this system. It is definitely a two-man job, and although I did it by myself, I wouldn't attempt it again without help. The 3/4" hose is VERY HARD and does not bend easily. It is a pain to route, especially in tight locations. There were numerous times where I wanted to send this back, but thankfully, I powered through the aggravation and now have a totally functional air system! Including the hose cutter is a great touch, especially since the hose is very hard to cut. Great forethought from the company. The fittings are high-quality and extra o-rings are included, I assume for leaks that will likely develop over time. I do have a few small leaks, but my system only loses about 30 PSI per day with the compressor turned off. Some leaks are admittedly coming from a junk air dryer that I installed in-line with this system. You really have to tighten down on these fittings to get them sealed. The manual recommends at least 3/4 turn, which was seemingly impossible for some of the fittings. I'm a fairly strong guy, and I had trouble getting them tight, even using a vise and a long wrench. Either way, I think I've got them cranked down well. The coupler blocks are well made and should last forever. I am tickled with the craftsmanship of the overall kit, as it is obvious that Maxline really took the time to engineer this right. The hose clips that were included are not too helpful without the addition of some zip ties, otherwise, every time you touch the hose it will jump out of the clip. I'm not kidding when I say that this hose is HARD and doesn't like to be bent! It was a challenge to install for sure, but I am happy now that it is done. Highly recommended, but be sure to get some help or else you'll dread the process!

## Frequently Bought Together

- Maxline M7500 Master Kit, 3/4-Inch x 100-Feet
- Maxline M8067 Elbow Fitting for 3/4-Inch Tubing (4-Pack)
- Maxline M8003 Straight Fitting for 3/4-Inch Tubing with 3/4-Inch Male NPT Thread

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*