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  2. Hose coupling - Wikipedia

    en.wikipedia.org/wiki/Hose_coupling

    Side view of a 1.5 to 2.5 inches (38 to 64 mm) adapter. National Hose thread (NH), also known as National Standard Thread (NST). It is the most common type of fire hose coupling used in the United States.

  3. North American Fire Hose Coupler Incompatibilities - Wikipedia

    en.wikipedia.org/wiki/North_American_Fire_Hose...

    At its annual convention at Dallas, TX, the NFPA formally adopted a standard with 2 + 1 ⁄ 2-inch hose with 7.5 threads per inch as the primary standard, with additional sizes of 3 and 3.5 inches (each with 6 threads per inch) and a 4.5 inch coupling with 4 threads per inch, with the fire hydrant standard specifying one 4.5 inch port and two 2 ...

  4. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  5. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Kinks in flexible ducting must be avoided. Some flexible duct markets prefer to avoid using flexible duct on the return air portions of HVAC systems, however flexible duct can tolerate moderate negative pressures. The UL181 test requires a negative pressure of 200 Pa. To use flexible ducting in a system, make sure to pull the duct tight so you ...

  6. This Is Costco's Secret Weapon Against Inflation - AOL

    www.aol.com/costcos-secret-weapon-against...

    Costco, however, has managed to avoid these pitfalls. Last quarter, revenue grew a solid 7.5%, while diluted earnings per share grew 12.8%, with both figures beating expectations.

  7. US lawmakers seek to halt weapons sales to UAE, citing Sudan

    www.aol.com/news/us-lawmakers-seek-halt-weapons...

    President Joe Biden, a Democrat, this year recognized the UAE as a major defense partner, and the Gulf state is host to the Al Dhafra Air Base with U.S. military aircraft and thousands of American ...

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