Boshart FGL01105 1/8" Galvaniz...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.96
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Boshart FGL01105 1/8" Galvanized Steel Pipe Plug Fitting

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Model: FGL01105

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

$1.96
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Boshart FGL01105 1/8" Galvanized Steel Pipe Plug

The Boshart FGL01105 is a 1/8" galvanized steel pipe plug built for rough-in and repair work on threaded galvanized and iron pipe systems. As a solid threaded plug, it is used to permanently or temporarily cap off an unused threaded outlet on a fitting, tee, or manifold, sealing the line while a branch is left inactive or during pressure testing. The galvanized steel construction gives this plug the strength and corrosion resistance plumbers and contractors expect from threaded pipe fittings used in water distribution, gas, and general piping applications where a zinc coating helps guard against rust in damp rough-in environments. At a compact 1/8" trade size, this plug is sized for small branch outlets, gauge ports, drain taps, and test points commonly found on manifolds, boilers, tanks, and threaded fitting assemblies. Contractors and plumbing wholesalers rely on parts like the FGL01105 to keep a stocked assortment of small threaded plugs on hand for finishing off unused ports without having to source an oversized or mismatched fitting. Because it is a standard threaded plug, it installs directly into any mating female threaded connection of the same trade size, making it a straightforward, no-frills solution for capping a line during a job or as a permanent close-off. This is a rough-in trade part intended for professional plumbing, mechanical, and piping installations rather than a decorative or finish-grade component.

Key Features

  • Trade Size: 1/8" threaded plug sized for small branch outlets, gauge ports, and test connections.
  • Durable Construction: Galvanized steel body resists corrosion in typical rough-in and mechanical room environments.
  • Threaded Plug Design: Solid plug configuration seals off an unused threaded outlet on pipe, fittings, or manifolds.
  • Compact Profile: Small 1/8" size fits tight branch connections without adding bulk to an assembly.
  • Standard Threaded Fitting: Compatible with mating female threaded connections of the same trade size for straightforward installation.

Technical Specifications

  • Trade Size: 1/8"
  • Material: Galvanized Steel
  • Product Type: Pipe Plug

Typical Applications

  • Capping Unused Threaded Outlets on Manifolds and Fittings
  • Pressure Testing Threaded Pipe Assemblies
  • Rough-In Plumbing and Mechanical Piping Repairs
  • Residential and Commercial Threaded Pipe Systems
  • Renovation and New Construction Piping Work

Why Boshart?

Boshart supplies galvanized steel threaded fittings built for the demands of professional rough-in plumbing and piping work. The FGL01105 pipe plug's galvanized steel construction is engineered to hold up to the corrosion exposure common in mechanical rooms and rough-in installations, giving contractors and plumbing wholesalers a reliable small-diameter plug to keep threaded systems sealed and job-ready.

Manufacturer Resources

Product Specs

list_batch:
BOS-20260923
Product Type:
Pipe Plug
Department:
Plumbing
Product Subgroup:
Plugs
Product Material:
Galvanized Steel
Product Size:
1/8"
Product Group:
Plumbing Fittings

Boshart FGL01105 – Frequently Asked Questions

1) Will a Boshart FGL01105 1/8 inch pipe plug thread into a 1/8 inch tapped gauge port?
Yes. The FGL01105 is a solid 1/8 inch threaded plug that screws into any mating female threaded connection of the same trade size, which is exactly what a gauge port, drain tap or test point on a manifold, boiler or tank gives you. It seals the port off, so use it where the branch is staying inactive or where you need the opening closed during a pressure test.
2) Is a pipe plug or a cap what I need to close off an outlet?
It depends which half of the thread you have. A plug like the FGL01105 is male and solid, so it goes into a female tapped opening: an unused port on a tee, fitting, manifold or tank. If the open end you are closing is a male pipe thread, you want a cap instead, which threads over the outside. Wrong one and it will not engage at all.
3) Is a galvanized steel plug the right choice, or should I use brass on a water line?
Galvanized steel is the match when you are plugging galvanized or iron threaded pipe. The FGL01105 has a galvanized steel body, so the zinc coating handles the rust exposure of damp rough-in and mechanical room conditions and the metal matches what it is threading into. On copper or brass systems, plumbers normally stay with brass to avoid mixing dissimilar metals, so a steel plug is not the part for that assembly.
4) Can I use this plug on a gas line as well as water?
The FGL01105 galvanized steel plug is used on threaded galvanized and iron pipe in water distribution, gas and general piping work. It is a rough-in trade part for professional plumbing and mechanical installations, not a finish-grade or decorative fitting, and like any threaded plug it needs thread sealant or tape suited to the service to make the joint up tight.
5) Can this plug be removed later if I want to open the branch back up?
Yes. The FGL01105 is used to cap a threaded outlet either permanently or temporarily, so it is common to fit it during pressure testing or while a branch sits inactive and back it out later when the branch is put into service. The threads are standard for the trade size, so the port stays usable.
How fast can I get the Boshart FGL01105 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 FGL01105 come with a warranty?
Absolutely. The Boshart FGL01105 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 FGL01105?
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 FGL01105 from ZenSupply?
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