How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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About Fire-Fighting Hose Threads
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Quick-Access Caps for Pin-Lug Fire Hydrants
These caps are the fastest way to access fire hydrants and washdown equipment. To install them, loop the eyebolts over the pin lugs of the hydrant and secure them in place with nuts. In an emergency, break the cap by hitting it or prying it off with a spanner wrench. Caps are aluminum, which is lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| For Fire Hose Trade Size | Material | Lg. | Each | |
| 2 1/2 | Aluminum | 3 1/2" | 000000 | 000000 |