Pasco 4511 1/2" IPS Thread & Nipple Internal Key

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WHAT OUR CUSTOMERS SAY…

“I am a very small customer (a homeowner) but I will continue to purchase from you! Thank you again! ”

-James V.

12/28/2022

$39.27

The Pasco 4511 is an internal nipple wrench (or internal nipple key) designed for 1/2-inch IPS (Iron Pipe Size) plumbing applications. It is used to install, loosen, or tighten pipe nipples and to remove broken threaded pieces from within fittings without damaging external finishes like chrome.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 52451 Categories: Brass Nipples & Fittings, Plumbing Tools Tag: Universal Fit

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The PASCO 4511 Internal Nipple Wrench (1/2″ IPS) is a time-saving plumbing tool engineered for homeowners and DIYers tackling tough bathroom or kitchen repairs. Whether you are replacing a broken shower arm, removing frozen fittings, or working on delicate chrome fixtures, this internal pipe wrench bites hard from the inside so you can complete your project without scratching finished surfaces.

4511

It is engineered to expand or grip internally against the inside walls of a pipe or fitting.
Made from precision-machined, hardened alloy steel or heavy-duty brass construction to ensure durability under high torque.

Common questions about this product

Yes, this is the OEM recommended part.

WHAT OUR CUSTOMERS SAY…

“Outstanding fast delivery on two pieces of an ancient Wolverine bath stem for Kohler - from the early 40s I think. The new one has a different body design, but it screwed directly into the old hot/cold tree and was the exact 6" length. Forty eight hours after installation now, and all remains fine. Also, kudos to the people who set up the website and ordering process. Great work - clear photos and info ! PS: I'm not an employee or family...lol. I retired from electrical wholesaling here outside Chicago and I appreciate a good job. ”

-JM C.

07/31/2026