Finding the best couplings 1/8 suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Brewery Gaskets 25-Pack EPDM Beer Line Coupling Washer
Feature
High Quality FDA EPDM RubberMade in the USA by Jet Gaeket & Seal Co
13/16" OD x 1/2" ID and 1/8" Thick
Standard size for keg couplers and shanks
Description
Standard size keg coupler gasket aka Beer Nut Washer. 13/16" outer diameter, 1/2" inner diameter and 1/8" thickness. FDA EPDM is preferred material over Neoprene for long lasting and non-leaching. Manufactured by Jet Gasket & Seal in the USA.2. Brennan 5000-02-02-SS Stainless Steel Pipe Fitting, Coupling, 1/8" NPT Female
Feature
Coupling for connecting two pipes going in the same directionFemale National Pipe Taper (NPT) threads on both ends for connecting two male threaded pipes
Made from stainless steel 316 for greater corrosion resistance than stainless steel 304
NPT threads for creating tighter seals than straight threads
Meets SAE J514 specifications for quality assurance
Description
This Brennan coupling is a stainless steel 316 pipe fitting with female National Pipe Taper (NPT) threads on both ends to connect two male pipes going in the same direction. It has NPT threads for creating tighter seals than straight threads and is made from stainless steel 316, which is more corrosion resistant than stainless steel 304. This fitting meets SAE J514 specifications for quality assurance.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
Brennan Industries manufactures critical flow components. The company, founded in 1953 and headquartered in Solon, OH, meets International Organization for Standardization (ISO) 9001:2008 standards and its fittings meet Society of Automotive Engineers (SAE) specifications.
3. Lead Free Brass Pipe Fitting, Coupling, Class 125, 1/8" NPT Female
Feature
Coupling for connecting and extending pipes going in the same directionFemale National Pipe Taper (NPT) threads for connecting two male pipes
Made from lead-free brass for higher corrosion resistance than steel
Relative softness of metal enables tighter seals and greater ease in installation
Manufactured to standard ASTM B-584-06 for lead-free quality assurance
Description
The Merit Brass class 125 coupling is a lead-free brass pipe fitting with female National Pipe Taper (NPT) threads for connecting and extending pipes going in the same direction. It has female NPT threads for connecting to male pipes with a tighter seal than straight threads. Lead-free brass is comparable in strength to stainless steel and is more corrosion resistant. This class 125 fitting meets standards ASTM B-584-06 (C89833), ANSI B 1.20.1, and ANSI B 16.15 for quality assurance. Class is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada.
4. PointZero Airbrush Quick Release (Disconnect) Coupling Set - 1/8" BSP
Feature
Includes 7 exclusive downloadable e-Book airbrushing guides.Description
This quick-release coupling mounts inline between your airbrush and hose, and provides an easy method for disconnecting and/or changing airbrushes without the need to release air pressure or unscrew fittings. This coupling also swivels, helping to eliminate hose kinks. Easy-to-use, simply pull back the spring-loaded sleeve and the fitting separates into two pieces; a small male nipple (also called a tail) that remains attached to the airbrush and a body section connected to the air hose. An internal, self-sealing mechanism prevents air from escaping when the coupling is separated. Standard 1/8" BSP connections. Includes one nipple (5mm diameter) and one body. As an added bonus, access to the following exclusive airbrushing guide downloads is included: Top 8 Cake Airbrushing Tips, Guide to Airbrush Cake Decorating, Developing Basic Artistic Skills, 10 Essential Airbrushing Tips, Airbrushing Strokes and Techniques, Airbrush Cleaning Manual, and the Airbrush Lettering Guide.5. Anderson Metals Brass Pipe Fitting, Coupling, 1/8" x 1/8" Female Pipe
Feature
Coupling for connecting two pipes with the same diameter in a straight runFemale National Pipe Taper (NPT) threads for connecting to male threaded pipes
Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
Operating temperatures range from -53 to 121 degrees C (-65 to 250 degrees F)
Meets specifications ASTM B584 and ASME/ANSI B16 for quality assurance
These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
Description
The Anderson Metals coupling pipe fitting is made of brass and has female National Pipe Taper (NPT) threaded connections. This coupling fitting connects two pipes going in the same direction with the same diameter to extend a straight run. It has female NPT threads for connecting to male threaded pipes, creating a tighter seal than straight threads. This fitting is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Brass can be connected to copper, brass, plastic, aluminum, and welded steel. The operating temperatures for this fitting range from -53 to 121 degrees C (-65 to 250 degrees F). This fitting meets American Society for Testing and Materials (ASTM) B584 and American Society of Mechanical Engineers (ASME)/American National Standards Institute (ANSI) B16 specifications for quality assurance.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
Anderson Metals manufactures brass fittings, valves, and pipe nipples. The company, founded in 1951, is headquartered in Kansas City, MO.
6. Air Venturi Male Quick-Disconnect, 1/8 BSPP Female Threads, Steel, Rated to 5000 PSI, Incl. Delrin Seal
Feature
PRECHARGED GUN ACCESSORIESDescription
Male quick-disconnect coupling 1/8 BSPP female threads on the other end Steel Rated for 5,000 psi Includes Delrin seal Delrin seal stops leakage!7. Everflow CCCP0018 1/8" Nominal Pipe Diameter Straight Copper Coupling With Sweat Sockets And With Dimple Tube Stop
Feature
Ever flow part number CCCP0018Copper straight coupling with sweat sockets
With dimple tube stop
For use with 1/8 inch nominal diameter copper pipe
Meets all applicable standards
Description
This is an Ever flow supplies straight coupling with sweat sockets on both its ends. The fitting, which has a dimple as tube stop, is made of copper and meets all applicable standards. It is designed for use with copper pipe having a nominal diameter of 1/8" and an outer diameter of 1/4".8. Air Venturi Foster Female Quick-Disconnect to 1/8 BSPP Male, 5000 PSI
Feature
PRECHARGED GUN ACCESSORIESDescription
Foster quick-disconnect female to 1/8 BSPP male adapter Remove the 1/8 BSPP male adapter, and you have a 1/8 BSPP female to a Foster quick-disconnect female All steel Foster adapter is stainless steel Max 5000 psi Quickly hook up your PCP guns with this quick-disconnect adapter. Multiple connection possibilities!9. PointZero Airbrush Male-Male Nipple Fitting Hose Coupling 1/8" BSP
Feature
Includes 7 exclusive downloadable e-Book airbrushing guides.Description
Standard 1/8" airbrush nipple. This male-to-male coupling has a 1/8" BSP fitting on each end. Can be used to connect two 1/8" airbrush hoses together, extending their length. As an added bonus, access to the following exclusive airbrushing guide downloads is included: Top 8 Cake Airbrushing Tips, Guide to Airbrush Cake Decorating, Developing Basic Artistic Skills, 10 Essential Airbrushing Tips, Airbrushing Strokes and Techniques, Airbrush Cleaning Manual, and the Airbrush Lettering Guide.10. LASCO 15-8250P Drip Irrigation Barb x Barb Coupling (10 Pack), 1/8" x 1/8"
Feature
Drip irrigation part1/8-inch barb by 1/8-inch barb coupling
Fits 1/8-inch drip tubing
For older style distribution tubing
Made in USA, comes 10-per pack
Description
LASCO 15-8250P Drip Irrigation Barb Coupling, 1/8-Inch Barb X 1/8-Inch Barb Coupling, 10-Pack. Drip irrigation 1/8-inch barb by 1/8-inch barb coupling for 1/8-inch older style distribution drip tubing! Comes 10-per pack. Made in USA. Founded in 1989, American Lighting, Inc. manufactures a wide range of lighting solutions for your residential, commercial and specialty lighting needs.We pride ourselves in being a lighting solutions provider by offering our customers a broad line of innovative and high quality lighting products. Continued innovation is a core strategic initiative at American Lighting and we are committed to developing new products by utilizing the latest lighting technologies and designs. We pledge to deliver superior customer service by employing and training a team of highly experienced lighting professionals.11. Seismic Audio - SAPT125 - 1/8" Female to 1/8" Female Coupler (Silver)
Feature
Model Number: SAPT1251/8" Female to 1/8" Female Coupler
Cable Extender
Brand New
One Year Warranty
Description
1/8" Female to 1/8" Female Coupler (Silver) - Model Number: SAPT125, 1/8" Female to 1/8" Female Coupler, Cable Extender, Brand New, One Year Warranty. You can never have to many of these connectors in your toolbox. These are ideal for when you have two 1/8" cables that need to be combined together to make a longer cable.12. Anvil 8700158507, Steel Pipe Fitting, Coupling, 1/8" NPT Female, Galvanized Finish
Feature
Coupling for connecting two pipes going in the same directionFemale National Pipe Taper (NPT) threads on both ends for connecting two male threaded pipes
Made from steel for greater rust resistance than iron
NPT threads for creating tighter seals than straight threads
Meets specifications ASTM A53 and ASME B 1.20.1 for quality assurance
Description
This Anvil coupling is a class 150 steel pipe fitting with female National Pipe Taper (NPT) threads on both ends to connect two male pipes going in the same direction. It has NPT threads for creating tighter seals than straight threads. This fitting is made of steel and has a galvanized finish to provide greater rust resistance than iron and can be used for water, steam, and air applications. This class 150 coupling meets specifications ASTM A53 and ASME B 1.20.1 for quality assurance. Class is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
Anvil International provides pipe products and design services. The company, founded in 1850 and headquartered in Portsmouth, NH, meets International Organization for Standardization (ISO) 9001:2000 standards and is certified by the American Petroleum Institute (API). Its fittings meet American Society for Testing and Materials (ASTM) and American Society of Mechanical Engineers (ASME) specifications.
13. Earl's 991001 Blue Anodized Aluminum 1/8" NPT Straight Female Coupling
Feature
Blue anodized finish for durability and custom lookFitting seals on the threads
Should not be overtorqued
Teflon tape or sealing compound must be used during assembly
Description
This Earl's pipe thread to pipe thread female coupling is made from light-weight aluminum and available for any plumbing situation and many custom applications.14. Pacific COUPLING-1/8 BRASS X 1/8
Feature
Pacific Floor Care PartsDescription
Pacific COUPLING-1/8 BRASS X 1/815. Coupling Merchant Galv 1/8
Feature
ChinaDescription
Import Galvanized Standard Merchant Coupling - Malleable galvanized iron pipe fittings. Straight tapped and suitable for steam, oil, or water lines with 150 lb. or less pressure. - Size: 1/8"16. White Reducer Coupling, 6-1/8" Length, 1/8" Width, 4-1/4" Height - 1 Each