The Spruce
thespruce.com › types-of-copper-piping-844852
4 Different Types of Copper Pipe and How to Choose One
November 10, 2025 - Copper pipe comes in several different types and in both rigid and flexible forms. Learn the basics of Types K, L, M, and DWV copper pipe.
Apollo Plumbing
apolloplumbing.net › home › apollo services › plumbing repairs everett, wa › copper pipe repair › type l vs type m copper: key differences
Type L vs Type M Copper: Key Differences | Apollo Plumbing
June 16, 2025 - It has very thin walls and is mostly phased out. It is now often replaced by plastic pipe. Color code: Yellow. Used for waste lines only. Rigid copper comes in straight lengths and needs fittings. Flexible copper comes in coils and bends around corners. Types K and L come in both forms.
Price $$
Address 1239 State Ave., 98270, Marysville
is type M copper pipe okay to mix with type L, and is it okay to use to run an exterior spigot?
Copper pipe 'types' determine wall thickness, Type K is thickest and they get thinner as you go to L and M. Outside diameter remains the same for all types so you can use the same joining methods for everything. All types will easily handle standard residential pressures, and if water hammer is an issue, best to install a hammer arrester. Unless budget is an issue and assuming code allows it, I would personally use type K for buried underground application, type L for piping exposed to potential abuse and type M for applications where it is concealed and protected. If you are not on municipal water and there is a possibility of having acidic water, then thick wall pipe will last longer before the acid forces you to replace it. More on reddit.com
7
14
June 28, 2014Can I mixed different types of copper pipe? I have old type K or maybe DWV.
r/Plumbing: Don't advertise or try to compare pricing, thanks More on amp.reddit.com
10
Is copper pipe still good?
Copper is great (I’d say the best) PEX is great and inexpensive PVC is most-likely illegal for anything other than irrigation More on reddit.com
50
15
January 29, 2018Where do you guys go for your copper piping? It's fairly expensive locally in my part of the country
For smaller stuff, I just pick it up at Home Depot. For 2" or bigger, I buy it by the inch on eBay. More on reddit.com
17
7
December 30, 2015Videos
Fenwickhomeservices
fenwickhomeservices.com › 4 types of copper pipes & their applications
4 Types of Copper Pipes & Their Applications | Fenwick Home Services
November 11, 2022 - Type M is thinner and cheaper than Types K and L. For example, a ½ inch pipe is generally .28 inches thick. Unlike Types K and L, Type M only comes in a rigid option. Type M is used for household water distribution and vacuum systems. It’s ideal for repairing, extending, and replacing interior branch water lines. Before investing in this type of copper piping, keep in mind that it doesn’t adhere to all plumbing codes, so it’s best to consult with those who know best.
Lowe's
lowes.com › home › diy projects & ideas › buying guides › plumbing
Types of Copper Pipes - A Guide for Your Plumbing Needs
October 23, 2024 - They include light-wall copper pipe, standard-wall copper pipe and extra-heavy-wall copper pipe with different wall thicknesses. Light-wall copper tubing can be ordered to L-type standards.
Type of metal tubing
Wikipedia
en.wikipedia.org › wiki › Copper_tubing
Copper tubing - Wikipedia
5 days ago - Therefore, one-inch nominal type L copper tube and · 1+1⁄8th inch type D ACR tube are exactly the same size, with different size designations. ACR pipe and tubing is cleaned after manufacturing and then capped and sealed, to ensure that the tubing is free from grains of metal and processing residues that could degrade components of a refrigerant system, the circulating refrigerant itself, or the compressor oil.
Copper.org
copper.org › applications › plumbing › cth › technical-data › tables › cth_table1.php
Table 14.1. Copper Tube: Types, Standards, Applications, ...
Copper Tube: Types, Standards, Applications, Tempers, Lengths
Whyrepipe
whyrepipe.com › blog › copper-pipe-types
Reviewing the 4 Different Copper Pipe Types
The thickness of the copper pipe also determines its price, pressure rating, and durability, among other things. Type K, L, and M are most commonly used to distribute water, while the DWV copper pipe is mostly used for waste management.
The CEU Authority
theceuauthority.com › blogs › blog › 669863-the-most-common-types-of-copper-piping
The Most Common Types of Copper Piping
December 14, 2021 - Copper pipes can be manufactured as soft or rigid copper and offer excellent corrosion-resistance and reliable connections. The three most common types of copper pipe used in residential and commercial construction are Type K, Type L, and Type M.
LinkedIn
linkedin.com › pulse › most-common-types-copper-tube-klm-eric-wang
The Most Common Types of Copper Tube: K/L/M
February 4, 2020 - Copper pipes can be manufactured as soft or rigid copper and offer excellent corrosion-resistance and reliable connections. The three most common types of copper pipe used in residential and commercial construction are Type K, Type L, and Type M.
This Old House
thisoldhouse.com › home › all about copper pipe
All About Copper Pipe - This Old House
For those requiring even greater durability and thickness, Type K is available but is typically found in more specialized or industrial applications. Copper pipe is available in various diameters to accommodate different flow requirements. Having a variety of sizes ensures that each pipe can be used for its intended purpose, ensuring optimal performance and efficiency.
Published June 3, 2025
Munotmetalloys
munotmetalloys.com › home › what type of copper pipe is better? a comprehensive guide
What Type of Copper Pipe is Better?
October 31, 2024 - The different types of copper pipes—Type K, Type L, and Type M. Learn their characteristics, uses, and find out which copper pipe is the best fit for your plumbing and HVAC need
RS Andrews -
rsandrews.com › home › choosing the right fittings: a copper pipe odyssey
Choosing the Right Fittings: A Copper Pipe Odyssey
July 22, 2025 - Compatibility Issues: Push fit fittings must be used with pipes that precisely match their size and type specifications. Improper matching can lead to leaks and reduced effectiveness of the fitting. Aesthetic Considerations: In visible areas, push fit fittings may not offer the same clean, streamlined appearance as soldered fittings, which can be a consideration in some decorative or exposed plumbing applications. Copper press fittings are a modern method for connecting copper pipes.
Woolf Plumbing
woolfplumbing.com.au › blog › the differences between copper pipes type l and type m
The Differences Between Copper Pipes — Type L And Type M ‐ Woolf Plumbing
March 8, 2025 - L and M copper pipes are commonly used for constructing water supply lines in both residential and commercial settings. Curious to know more? Keep reading! Pipe manufacturers make copper pipes in four regular types: L, M, K, and DWV.
Airmccoy
airmccoy.com › blog › 2020 › 9 › 1 › the-differences-between-copper-pipe-types-explained
The Differences Between Copper Pipe Types, Explained — McCoy's Heating & Air
August 27, 2025 - Pipe wall thickness varies according to the pipe diameter. ½-inch Type K pipe has a wall thickness of .049 inches, while ¾-inch has a thickness of .065 inches. Its thickness also makes Type K the heaviest and most expensive type of copper pipe.
Address 138 Mill Masters Drive Jackson, TN 38305 United States
Dummies
dummies.com › article › home-auto-hobbies › home-improvement-appliances › plumbing › general-plumbing › how-to-recognize-different-types-of-pipes-201714
How to Recognize Different Types of Pipes | dummies
June 30, 2025 - To tackle a do-it-yourself plumbing project, you need to know how to recognize different types of pipes. Recognizing the different types of pipes within your house is vital to knowing the right repair technique. The most common pipes used today are copper, PVC, or ABS.
Quora
quora.com › What-is-the-difference-between-type-k-l-and-m-copper-pipe
What is the difference between type k, l, and m copper pipe? - Quora
Type K, being the thickest, is usually found underground as a water service between the city main and the main shut off valve just inside the foundation wall. Type L, is the most common. It is used as the primary method to d...
Whittinspections
whittinspections.com › home › explaining the differences between copper pipe types
Types of Copper Pipes: A Homeowner's Guide To Fix It Yourself
May 8, 2022 - M copper pipes will be your thinnest option (about 0.032 inches on a 3/4″ pipe), and also the cheapest. You can usually tell which ones are Type M by the red markings on the outside. Because of its more delicate exterior, M copper pipes aren’t suitable for some applications.
Westlake Ace Hardware
westlakehardware.com › home › what do the letters ‘k,’ ‘l’ and ‘m’ on copper tubing mean?
What do the letters 'K,' 'L' and 'M' on copper tubing mean? - Westlake Ace Hardware
October 13, 2020 - Type K is the heaviest. Type L is medium weight and used most often for water lines in homes. Type M is thinner and is used underground or for light
NEIT
neit.edu › home › blog › the 5 types of plumbing pipes
Types of Plumbing Pipes | Learn What the Top 5 Are in This Post | NEIT
December 20, 2021 - As our understanding of lead poisoning developed, things evolved even further. Today, there are many different types of pipes available, each used to serve a specific purpose. This list consists of PVC, PEX, ABS, copper, and galvanized steel, and cast iron piping.
Copper.org
copper.org › applications › plumbing › cth
Copper Tube Handbook: Introduction and Table of Contents
Since 1925, this method of joining pipe has been used reliably on steel and iron pipe in HVAC, fire protection, process piping and related applications.