A standard outdoor hose connection uses 3/4-inch garden hose thread, usually with 11.5 threads per inch on the hose ends.
If you’ve ever stood in the plumbing aisle staring at adapters, splitters, timers, and repair fittings, this is the part that trips people up: the hose itself may be labeled 1/2 inch, 5/8 inch, or 3/4 inch, yet the threaded connection on the end is usually the same standard size.
That standard is what matters when you’re trying to connect a hose to a faucet, sprinkler timer, nozzle, pressure washer accessory, or drip setup. Once you know the thread size, shopping gets easier and cross-threading gets a lot less likely.
How Big Is A Garden Hose Connection? At A Glance
For most homes in the United States, the standard garden hose connection is 3/4 inch GHT. GHT stands for garden hose thread. You may also see FHT for female hose thread and MHT for male hose thread on parts and packaging.
The usual thread form is 3/4 inch with 11.5 threads per inch. That does not mean the inside water path is a full 3/4 inch. It describes the threaded fitting standard used to make hose-end parts fit together.
- Standard hose-end connection: 3/4 inch GHT
- Female end label: FHT
- Male end label: MHT
- Typical thread count: 11.5 TPI
- Seal style: washer seal, not tapered pipe sealing
That last point matters. Garden hose threads seal with a rubber washer inside the female end. Pipe threads seal by thread shape plus thread tape or pipe dope. Mix them up and leaks show up fast.
Garden Hose Connection Size And Thread Terms
The phrase “garden hose size” gets used for two different things. One is the hose diameter. The other is the threaded fitting on the ends. Those are not the same.
Hose Diameter
This is the width of the hose body itself. Many hoses sold for homes are 1/2 inch, 5/8 inch, or 3/4 inch. That affects water flow, weight, and how stiff the hose feels when you drag it around the yard.
Connection Size
This is the threaded end that screws onto a spigot or accessory. On standard residential hoses, that end is usually 3/4 inch GHT no matter which hose diameter you bought.
Male And Female Ends
The male end has threads on the outside. The female end has threads on the inside and usually contains the washer. If a package says 3/4 inch FHT x 1/2 inch compression, it means one side fits a standard hose connection and the other side fits a smaller tubing system.
Manufacturers label this clearly. Rain Bird lists drip fittings with 3/4 in. female hose thread, while Orbit shows hose-side parts with standard 3/4-in. female hose thread and matching male hose thread on the outlet.
Why The Label Can Look Wrong
This is where people get turned around. A hose sold as 5/8 inch can still have a 3/4 inch garden hose connection on the end. That isn’t a mistake. The hose diameter and the end fitting standard are just different measurements.
Think of it like this: the hose body tells you how much water the hose can carry and how heavy it feels. The connection tells you what hardware it can screw onto. Those two specs work together, but they answer different questions.
Retail listings show this split all the time. You’ll see adapters sold as 3/4 in. FHT x 1/2 in. MIP. That means the hose side is standard 3/4 inch female hose thread, while the pipe side is a different plumbing size entirely.
What Fits What
If you’re buying ordinary hose-end gear for a U.S. outdoor faucet, you can usually expect it to fit if it says 3/4 inch GHT, 3/4 inch FHT, or 3/4 inch MHT. That covers most nozzles, timers, shut-off valves, splitters, and repair ends sold for home watering.
The trouble starts when a part uses pipe thread, compression thread, faucet aerator thread, or pressure washer thread. Those may look close at a glance, yet they are not meant to mate directly with a garden hose end.
| Label On Part | What It Means | Will It Fit A Standard Garden Hose? |
|---|---|---|
| 3/4 in. GHT | Standard garden hose thread | Yes |
| 3/4 in. FHT | Female hose thread | Yes, fits a male hose end or spigot |
| 3/4 in. MHT | Male hose thread | Yes, fits a female hose end |
| 1/2 in. NPT | Pipe thread | No, needs an adapter |
| 3/4 in. FIP or MIP | Iron pipe thread | No, not direct-fit hose thread |
| 55/64 in.-27 | Faucet aerator thread | No, often used with faucet adapters |
| 1/2 in. Compression | Tubing or drip fitting side | No, not a hose-end thread |
| Quick connect | Snap-style coupler system | Only if the base fitting is 3/4 in. GHT |
How To Measure A Garden Hose Connection
If the package is gone and the printing on the hose has faded, you can still check the fitting at home in a minute or two.
Step 1: Look At The End Type
Check whether you have male or female threads. The female end often has a rubber washer tucked inside. If that washer is missing, the fitting may drip even when the size is right.
Step 2: Measure The Threaded End
Use a ruler or caliper across the threaded portion. A standard garden hose fitting lands near the 3/4 inch hose thread standard, though the outside measurement may not read like a clean 0.75 inch because threads are measured by fitting standard, not by a simple flat-edge reading.
Step 3: Count The Threads If Needed
Standard garden hose thread uses 11.5 threads per inch. Most homeowners won’t need to count threads, though it helps when you’re sorting old fittings from a coffee can in the garage.
Step 4: Match The Seal Style
If the fitting seals with a washer, you’re likely dealing with hose thread. If it needs thread tape to stop leaking, you may be working with pipe thread instead.
Where People Get The Wrong Adapter
The most common miss is buying a pipe-thread adapter because the size number looks familiar. A 3/4 inch pipe fitting sounds close to a 3/4 inch hose fitting, but they are not the same connection style.
Another snag shows up at kitchen or laundry faucets. Those often use aerator threads or appliance threads. A garden hose may attach only with an extra adapter between the faucet and the hose.
Pressure washer parts can be another trap. Some use M22 or quick-connect systems that are built for higher-pressure gear, not plain garden hose ends. The hose may feed the machine through one standard point, yet the wand and accessory side use other thread types.
| If You’re Connecting To | What You’ll Usually Need | Watch Out For |
|---|---|---|
| Outdoor spigot | 3/4 in. FHT hose end | Missing washer |
| Nozzle or sprinkler | 3/4 in. MHT or FHT match | Cross-threading plastic parts |
| Drip timer or splitter | Standard 3/4 in. hose thread | Overtightening washers |
| PVC or metal plumbing pipe | Hose-to-pipe adapter | Confusing GHT with NPT |
| Sink faucet | Aerator-to-hose adapter | Wrong faucet thread pattern |
| Pressure washer inlet | Model-specific inlet fitting | Assuming all pressure washer parts match hose thread |
Does Every Garden Hose Use The Same Connection?
Most residential hoses sold in the U.S. do. That’s why hose-end accessories are so easy to swap around from one brand to another.
There are a few exceptions. Some commercial setups, imported hardware, specialty irrigation parts, and old oddball fittings may use something else. You may also run into damaged threads that make a standard fitting act like the wrong size.
If two parts should match on paper but still won’t screw together smoothly, stop and check the threads. A good fit should turn on by hand without force for several turns before you snug it down.
Best Way To Buy The Right Part The First Time
Start with the words on the package, not just the number. “3/4 inch FHT” and “3/4 inch MHT” tell you far more than a bare 3/4 inch callout. Then check whether the other side of the fitting is pipe thread, compression, barb, or slip.
- Match male to female
- Check for a washer on the female side
- Do not force hose thread onto pipe thread
- Bring the old fitting to the store if the part is worn or unmarked
- Choose brass for longer life if the fitting will stay outdoors
Once you know that a standard garden hose connection is 3/4 inch GHT, most of the mystery falls away. The rest comes down to reading the side labels and making sure the non-hose end of the adapter matches your faucet, pipe, or irrigation tubing.
References & Sources
- Rain Bird.“Easy Fit Compression Fitting System – 3/4 in. Female Hose Thread Adapter.”Shows manufacturer labeling for standard 3/4-inch female hose thread used on garden hose connections.
- Orbit.“3/4-in FHT x MHT Hose Faucet Drip Filter.”Lists standard 3/4-inch female and male hose thread on a hose-side accessory, backing the standard connection size.
- Everbilt at The Home Depot.“3/4 in. FHT x 1/2 in. MIP Brass Adapter Fitting.”Shows how hose thread and pipe thread are labeled differently on one fitting, which helps explain why the connections are not interchangeable.