How to connect two garden hoses
The male end of one hose screws straight into the female end of the next: no adapter, just a good rubber washer. If you have two female ends, use a double male hose connector; with two male ends, a double female connector.
The end that screws onto a faucet, with threads inside and a rubber washer
Male hose thread, as on a spigot spout, a washing machine valve or the far end of a hose
What fits
No adapter. It screws straight on
female hose thread onto male hose thread
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Common questions
How do I connect two female hose ends?
Double male hose connector (3/4" MHT x MHT). Two female ends both need threads to screw onto. The connector has male thread on both sides.
How do I connect two male hose ends?
Double female hose connector (3/4" FHT x FHT). Two male ends can’t meet. The connector gives each a female thread with a washer.
Can I connect a 5/8 inch hose to a 3/4 inch hose?
Yes, directly. The 1/2", 5/8" and 3/4" on a hose label is its inside diameter, not the end fitting; the ends are the same 3/4" garden hose thread.
Where we get our information from
The sizes on this page come from published standards and the makers’ own documents. Checked against published data from Flexzilla, National Bureau of Standards, Dixon Valve and Anderson Metals.
See all 5 sources
- National Bureau of Standards, Handbook H28 (1957) Part II: Table VII.2 (American Standard taper pipe threads, NPT) and Tables X.1–X.3 (hose coupling threads, NH)
- Dixon Valve, Technical Information: Identifying Threads and Thread Dimensions (2009 catalog)
- Anderson Metals and BrassCraft brass hose adapter listings (FHT x MIP, MHT x FIP and related)
- Flexzilla, “How to Choose Garden Hose Diameter” and garden hose specifications
- Flexzilla, “What Causes a Leaky Garden Hose”
General guidance from manufacturer and standards data. Parts vary by brand, so check the size printed on the package against what you measured. For gas lines or anything inside a wall, use a licensed plumber.