The best brass 4-way tee depends on pipe size, thread layout, and the application. The Joywayus fitting suits buyers who need a 1/4-inch female-to-male configuration, while the SUPPLYGIANT cross is the 3/4-inch option. Midanya and Nigo offer 1/4-inch female-threaded crosses, and Nigo’s 1/8-inch model fits smaller nominal pipe connections. Check every port and system requirement before selecting a fitting.
| Product | Best For | Listed Connection Details |
|---|---|---|
| Joywayus 1/4-Inch Adapter | Mixed female and male threads | 1/4-inch NPT female × male |
| SUPPLYGIANT 3/4-Inch Cross | Larger, equal-size branches | 3/4-inch female branches |
| Midanya 1/4-Inch Cross | Four female NPT connections | 1/4-inch female NPT |
| Nigo 1/4-Inch Forged Cross | Buyers prioritizing a stated pressure rating | 1/4-inch female NPT |
| Nigo 1/8-Inch Forged Cross | Smaller threaded pipe connections | 1/8-inch female NPT |
Joywayus 1/4-Inch Brass Adapter

This Joywayus fitting is best for buyers who need a compact four-way connector with a female-to-male thread arrangement. Its listed size is 1/4-inch NPT female × male, and the product description identifies four openings for connecting and branching pipes.
The manufacturer lists fuel equipment, plumbing, gas, refrigeration, and vacuum among its intended applications. Choose this option when the female and male ends match the planned connection; do not assume all four ports have the same thread gender or configuration, since the listing gives limited port-by-port detail. Confirm the product dimensions before ordering.
SUPPLYGIANT 3/4-Inch Brass Cross

This SUPPLYGIANT fitting is best for buyers who need a larger 3/4-inch cross with equally sized female threaded branches. The listing describes it as a lead-free brass cross for 125-pound applications and identifies the part number as BRCR0034-NL.
Its equal-size branches make it a straightforward choice when all four connections are intended to use the listed size. Avoid choosing it for a 1/4-inch or 1/8-inch setup: its nominal size is 3/4 inch. Verify that the application’s requirements align with the listed 125-pound application description before installation.
Midanya 1/4-Inch Female NPT Cross

The Midanya cross is best for buyers connecting four male-threaded 1/4-inch NPT pipes. It has four female NPT openings positioned at 90-degree angles, and the listing describes the body as brass barstock. The manufacturer notes uses with air, water, fuel, oil, and inert gases.
The product description also highlights deeper threads intended to improve the bite. Select it when four female ports suit the layout. The listing does not provide a pressure rating, so do not infer a safe operating pressure from the material or thread description; check application requirements separately.
Nigo Forged Brass 1/4-Inch Cross

This Nigo Valve fitting is best for buyers seeking a forged brass cross with four 1/4-inch female NPT connections. The listed construction is forged brass, and the product specifies a maximum pressure of 1,000 PSI WOG. It is described for use with brass, steel, and iron pipe.
The stated WOG rating is a product specification, not a substitute for checking the complete system’s limits and application requirements. Choose this model when its 1/4-inch female ports and listed rating match the installation; avoid treating the rating as proof of suitability for an unspecified medium or operating condition.
Nigo Forged Brass 1/8-Inch Cross

This is the smaller-size alternative for buyers whose layout calls for four 1/8-inch female NPT ports. Like the Nigo 1/4-inch model, it is made from forged brass, is listed for use with brass, steel, and iron pipe, and has a stated maximum pressure of 1,000 PSI WOG.
Choose it when the smaller nominal connection size is required, rather than trying to adapt a 1/4-inch fitting into the layout. The listing’s pressure specification does not establish suitability for every fluid or system, so verify operating conditions before use.
Buying Guide: How to Choose a Brass 4-Way Tee
What size and thread type do you need?
Start by matching the nominal pipe size and thread gender at every opening. NPT size is nominal and does not equal the fitting’s measured outside diameter. A female NPT port connects to a compatible male-threaded pipe. The Joywayus listing describes a female-to-male configuration, while the Midanya and Nigo crosses specify female ports. Confirm all connection details when a listing does not describe each opening separately.
Does the material or pressure information fit the job?
Brass fittings are used in many pipe-connection applications, but material alone does not determine suitability. Compare the product’s listed use, pressure information, and intended medium with the system requirements. The Nigo products list a 1,000 PSI WOG maximum, and the SUPPLYGIANT listing describes 125-pound applications. These specifications should not be treated as interchangeable ratings.
When should you choose a cross instead of a tee?
A four-way cross has four openings arranged to connect or branch pipes in four directions. A conventional three-way tee has three openings and cannot provide the same four-port layout. Check the product’s port count and arrangement rather than relying only on informal product naming.
What should you verify before ordering?
- Nominal pipe size and NPT thread compatibility.
- Whether each port is female or male, and whether all ports match.
- Application and pressure requirements stated by the manufacturer.
- Whether the fitting’s listed material and intended use suit the system.
Frequently Asked Questions
What is a brass 4-way tee used for?
It connects or branches four pipe runs through a four-opening fitting. Confirm the port layout and thread details for the specific model.
Are NPT sizes the same as measured pipe diameters?
No. NPT sizes are nominal designations, not the actual outside diameter. Use the correct nominal size and thread type when choosing a fitting.
Can every brass cross connect water, gas, and oil?
No universal suitability is established by the word “brass.” Check the particular product’s listed applications and confirm it meets the system’s requirements.
Does a 1,000 PSI WOG rating apply to every use?
No. It is the stated specification for the listed Nigo fittings. Verify the medium, operating conditions, and system limits before installation.
How do I choose between 1/8-inch, 1/4-inch, and 3/4-inch fittings?
Choose the nominal size that matches the connected pipe threads. The size options are not interchangeable without a properly selected adapter.