A hose cap is a simple way to tidy up unused water connections. It can:

• Reduce drips from lightly seeping spigots, splitters, or hoses when the water is off.
• Keep out dirt and bugs so your hose and fittings stay cleaner.
• Protect threads on faucets and accessories from dings and corrosion.
• Shut off unused outlets on manifolds or irrigation setups without removing parts.

Most caps rely on a flat rubber washer to seal, so replacing worn washers can improve results. A cap isn’t a substitute for a working shutoff; if a faucet leaks under pressure, consider turning water off at the source and addressing the valve. Use page filters to compare sizes and pack counts.

1. Turn off water and drain the line so there’s no pressure.
2. Identify the end: a hose’s male end has outside threads; a female swivel has inside threads.
3. Match the cap:
   • For a male hose end, use a female garden hose cap with a flat washer.
   • For a female swivel, use a male plug cap (male GHT).
4. Hand‑tighten until snug. Avoid tools that may damage threads.
5. Check for drips. If it seeps, replace the washer and retighten.

Caps work well for unused outlets on splitters or sprinklers, too. They’re designed to help manage minor seepage, but it’s best to shut water off at the source rather than relying on a cap to hold pressure.

Most garden gear in the U.S. uses 3/4 in. GHT (garden hose thread), which is different from pipe thread. You’ll also see occasional 1/2 in. GHT on some accessories.

• Check thread type: GHT and NPT aren’t interchangeable. If you’re mixing systems, you may need an adapter.
• Match the gender: choose a female cap for male hose ends/spigots, or a male plug for female swivels.
• Look for washers: many caps include gaskets that help seal.

Review the item’s specifications for “GHT” and size before adding to cart. Using site filters to sort by size, material, and pack count can make comparison easier, and pickup or delivery options vary by location.

Capping a spigot can be a small, handy upgrade. It may:

• Deter minor drips when the valve seeps slightly in the off position.
• Keep insects and debris out of your faucet opening.
• Protect the threads from bumps and corrosion between uses.
• Prevent accidental spray if the handle is bumped on briefly.

Choose a female garden hose cap for a standard spigot and use a flat washer for a better seal. A cap isn’t designed to prevent freeze damage; for cold weather, shut off the supply upstream and drain the line. Materials vary—brass offers durability, while plastic or nylon is lightweight and easy to handle.

Both materials can work well; the better fit depends on how you’ll use them:

• Brass: sturdy and resistant to thread wear, which can be helpful for frequent on/off use and outdoor exposure. It’s heavier and may bind if overtightened; a dab of silicone grease on the gasket can aid removal.
• Plastic/Nylon: lightweight, corrosion‑proof, and gentle on metal threads. It’s convenient for light‑duty or seasonal setups, though it may not tolerate rough handling as well.

Either way, most caps seal with a flat washer; replacing worn gaskets often improves performance. Use filters to compare material, pack size, and included washers, and choose what aligns with your usage and climate.