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Description
3 x 1 Galvanized Malleable Reducing CouplingThe 3 x 1 Galvanized Malleable Reducing Coupling is a threaded pipe fitting designed to securely connect pipes of different diameters. Its rugged, corrosion resistant construction ensures reliable pipe size reduction for plumbing, HVAC, industrial, and irrigation applications. Made from high strength malleable iron with a hot dip galvanized coating, this coupling offers excellent durability and corrosion resistance, making it ideal for water, gas,
The 3 x 1 Galvanized Malleable Reducing Coupling is a threaded pipe fitting designed to securely connect pipes of different diameters. Its rugged, corrosion-resistant construction ensures reliable pipe size reduction for plumbing, HVAC, industrial, and irrigation applications. Made from high-strength malleable iron with a hot-dip galvanized coating, this coupling offers excellent durability and corrosion resistance, making it ideal for water, gas, air, and industrial piping systems.
| Specification | Details |
|---|---|
| TYPE | Reducing Coupling |
| DESIGN |
Cylindrical with internal threading on both ends for secure, leak-free connections in threaded piping systems |
| MATERIAL |
Iron ensures high strength, longevity, and resistance to cracking |
| MATERIAL CONSTRUCTION | Malleable Iron |
| WEIGHT | 0.930 |
| CONNECTION SIZE 1 | 3" |
| CONNECTION SIZE 2 | 1" |
| CONNECTION TYPE | FPT|FPT |
| CONNECTION TYPE 1 | FPT |
| CONNECTION TYPE 2 | FPT |
| DIMENSIONS STANDARD | ANSI B16.3 |
| DIMENSIONS | 4.38" L |
| FINISH | Galvanized |
| FITTING TYPE | Coupling |
| PRESSURE CLASS | 150 lb |
| TEMPERATURE RATING | -20 to 350 deg F |
| THREAD SIZE | 3-8 x 1-11-1/2 |
| APPLICATIONS |
Ideal for Plumbing Systems, HVAC & Air Systems, Gas & Fuel Lines, Industrial & Mechanical Piping, Irrigation & Agricultural Use |
| BRAND | Midland Industries |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 266 reviews
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Product Reviews
★★★★★ 3
Does the job, easy use, a bit bulky not exactly as described
Size: 12 Pairs / 24 pcs
Bare wire can be intolerable to work with. Banana plugs make a positive secure connection. These plugs are a touch bulky. Nice to not have to deal with small screws. Use as large of gauge wire as possible. The description says no unintentional disconnections. I beg to differ the bite of teeth aren’t as good as described. Used a 16 gauge pure copper speaker wire and a teenager taught me how secure the wire really is by tugging on the wire not the banana plug pulling the wire free. It does the job, it’s not the latest and greatest. If you need easy get these. If you want slim secure banana plugs buy the small screw type.
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Reviewed in the United States on July 3, 2025
★★★★★ 5
GET THEM!!
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
Fully gold plated inside and out! I initially got the amazon basic connectors for the same price, but was disappointed in the tiny burgundy positive label they had. It was also very dirty inside the connector and it wasn’t gold plated through out the connector. These are excellent in quality and have a bright red ban on the connector! You wont be disappointed and beats out Sewell connectors for the price!
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Reviewed in the United States on January 24, 2025
★★★★★ 2
Decent, but be careful of frequent use.
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Great Quality and Value - Perfect Connections
Size: 10 Pairs, Pattern Name: Banana Plugs
I used these Monoprice 24k gold-plated banana plugs to connect both my surround sound and desktop speakers, and they work perfectly. The connections are solid and secure, with no looseness or signal issues.
They’re easy to install, look great, and offer excellent value for the price. Highly recommended!
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Fantastic speaker plug at a great price!
Size: 5 Pack, Pattern Name: Banana Plugs
This is a product that gets the job done effectively, and at a good price. Banana plugs are used to clean up speaker wire - you can generally screw in speaker wire, but banana plugs provide a nice interface that allows you to plug in and remove speaker wire as needed.
These closed plugs do a good job terminating / hiding the wire. They fit very well into various components and amps that I own.
INSTRUCTIONS to install / use them:
* Remove around 1" - 2" of the white casing to expose the red and white individual speaker wires
* Strip each wire so ~1/2" metal is showing
* Make sure the plug end is screwed in tightly (this does not need to come out)
* Unscrew the base of the plug from the other end
* WithOUT twisting the metal wiring, insert the wire (match wire color with plug color; start with either one) from the bottom of the plug until the metal sticks out the top
* Have ~1/4" metal hanging past the plug
* take the wiring and drape it down the sides of the plug (just the smooth side, do NOT cover any of the screw threading or it will be very hard to close it)
* Spread the draped wiring around the plug as evenly as possible (makes it easier to screw in later)
* Screw the two ends of the plug back together (the side with the draped wiring will go inside the plug)
* If you get stuck while screwing it back in, unscrew and adjust the wiring
* Repeat for the other side, and you're done!
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Reviewed in the United States on January 10, 2019