Boshart NIPGL48 Galvanized Ste...
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Boshart NIPGL48 Galvanized Steel Reducing Nipple

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Model: NIPGL18X2

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.02
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Boshart NIPGL48 Galvanized Steel Reducing Nipple

The Boshart NIPGL48 is a galvanized steel reducing nipple built for rough-in and repair work where two different threaded pipe sizes need to be joined in a single run. This family is available in multiple reducing size combinations, allowing plumbers and contractors to step down between common threaded steel pipe sizes without adding a separate reducing coupling and an extra joint. Machined from galvanized steel for corrosion resistance in threaded piping systems, the NIPGL48 line is a straightforward, code-shop staple for water service lines, well systems, and general threaded steel piping where a compact size transition is needed behind the wall, under the floor, or in a mechanical room.

Key Features

  • Reducing Size Range: Offered in a range of reducing configurations to transition between common threaded steel pipe sizes in a single fitting — select the combination that matches your run.
  • Durable Construction: Galvanized steel body resists corrosion and rust in threaded pipe applications, standing up to the wear of rough-in and repair environments.
  • Threaded Connection: Male threaded ends on both sides allow the nipple to thread directly into fittings, valves, or couplings without additional adapters.
  • Reducing Design: Combines a size transition and a connecting nipple in one part, reducing the number of joints in a run and simplifying installation.
  • Compact Footprint: A short overall length keeps the transition tight, which is useful in confined mechanical spaces, utility rooms, and tight rough-in cavities.
  • Simplified Ordering: One part number family covers several common reducing combinations, so contractors can standardize on a single line of nipples for varied rough-in needs.

Technical Specifications

  • Material: Galvanized Steel
  • Connection: Threaded (Male x Male)
  • Configuration: Reducing Nipple
  • Size Options: Multiple reducing size combinations available within this family — select the specific size combination needed for your application.
  • list_batch: Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Residential and Commercial Rough-In Plumbing
  • Well and Water Service Piping
  • Threaded Steel Pipe Repair and Retrofit
  • Mechanical Room and Utility Piping Transitions
  • Renovation and New Construction Plumbing Runs

Why Boshart?

Boshart supplies rough-in plumbers and contractors with galvanized steel fittings built for reliable, long-lasting threaded connections. The NIPGL48 reducing nipple family's galvanized steel construction and precise reducing threads make it a dependable, no-fuss choice for tying together mismatched pipe sizes on the job, with a range of size combinations to cover common rough-in and repair scenarios.

Manufacturer Resources

Product Specs

list_batch:
BOS-20260923
Product Type:
Reducing Nipple
Connection Type:
Threaded
Configuration:
Reducing Nipple
Department:
Plumbing
Product Subgroup:
Fittings
Product Material:
Galvanized Steel
Product Group:
Plumbing Fittings

Boshart NIPGL18X2 – Frequently Asked Questions

1) What size combinations does the Boshart NIPGL48 galvanized reducing nipple come in?
Three reducing combinations are offered, ordered by part number: NIPGL18X2, NIPGLR114X1, and NIPGLR2X112. Each is a single fitting that makes the size transition and the nipple run in one piece, so you are not stacking a reducing coupling plus a close nipple. Pick the part number that matches the two threaded pipe sizes you are tying together.
2) Are both ends of the Boshart NIPGL48 reducing nipple male threaded?
Yes, male threads on both ends. That means the nipple screws directly into female-threaded fittings, valves, couplings, or unions on each side with no extra adapter. If what you are joining has male threads, you will need a coupling or a female-threaded fitting at that end instead.
3) Can a galvanized steel reducing nipple be used on a well or water service line?
Galvanized steel is the intended material here, and the NIPGL48 family is built for threaded water service lines, well systems, and general threaded steel piping. The galvanizing is what gives it corrosion resistance in a wet threaded system. For potable water work, follow whatever your local code requires for galvanized piping in that application.
4) Should I use a reducing nipple or a reducing coupling with a separate nipple?
A reducing nipple does both jobs in one part, which takes a joint out of the run and keeps the transition short. That matters in a tight rough-in cavity, under a floor, or in a crowded mechanical room. Use a separate reducing coupling and nipple when you need extra length between the two sizes, or when the size step you need is not one of the three combinations Boshart offers in this line.
5) Will this Boshart nipple thread into existing galvanized pipe on a repair?
It is made for exactly that. The NIPGL48 is a threaded male x male galvanized steel fitting intended for threaded steel pipe repair and retrofit, so it threads into the existing female fittings on a galvanized run. Match the thread size on each side to the two pipe sizes you are joining, and use pipe dope or PTFE tape on the threads as you would on any steel joint.
6) Is the Boshart NIPGL48 a straight nipple or does it change pipe size?
It changes size. The configuration is a reducing nipple, meaning one end is threaded for a larger pipe size and the other for a smaller one. If you need the same size on both ends, you want a standard galvanized nipple, not this part.
How fast can I get the Boshart NIPGL18X2 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Boshart NIPGL18X2 come with a warranty?
Absolutely. The Boshart NIPGL18X2 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Boshart NIPGL18X2?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Boshart NIPGL18X2 from ZenSupply?
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