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Boshart FINS10012 1-1/4" Galvanized Steel Insert Coupling Fitting
The Boshart FINS10012 is a 1-1/4" galvanized steel insert coupling built for rough-in plumbers joining polyethylene tubing runs behind the wall or below grade. This insert-style coupling slides inside the pipe bore and relies on a barbed connection secured with a clamp or crimp ring, giving installers a straightforward way to extend or repair 1-1/4" poly lines without introducing threaded joints into the run. The galvanized steel body resists corrosion in wet, buried, or damp rough-in environments where bare steel fittings would otherwise rust prematurely, making this coupling a practical choice for well lines, irrigation supply, and other underground or concealed poly tubing installations.
Key Features
- Trade Size: 1-1/4" insert coupling sized for matching poly tubing runs.
- Durable Construction: Galvanized steel body for corrosion resistance in buried and wet rough-in applications.
- Insert Connection: Barbed insert design accepts poly tubing for a clamp- or crimp-secured joint, eliminating the need for threaded connections at the coupling.
- Straight Coupling Configuration: Joins two lengths of 1-1/4" poly tubing in-line, useful for extending runs or completing repairs.
- Rough-In Ready: Designed for concealed, underground, or behind-the-wall installation typical of poly supply lines.
Technical Specifications
- Trade Size: 1-1/4"
- Material: Galvanized Steel
- Type: Insert Coupling
Typical Applications
- Underground and Buried Poly Tubing Runs
- Well and Irrigation Water Supply Lines
- Residential and Commercial Rough-In Plumbing
- Poly Pipe Repairs and Line Extensions
- Concealed Behind-the-Wall Plumbing Connections
Why Boshart?
Boshart supplies rough-in plumbing professionals with galvanized steel insert fittings built to hold up in the buried and wet-location conditions where poly tubing is most often installed. The FINS10012 delivers a straightforward barbed insert connection in a corrosion-resistant galvanized body, giving contractors a dependable coupling for extending or repairing 1-1/4" poly supply lines on the job site.
Manufacturer Resources
Product Specs
- list_batch:
- BOS-20260923
- Product Type:
- Coupling
- Connection Type:
- Insert
- Department:
- Plumbing
- Product Subgroup:
- Couplings
- Product Material:
- Galvanized Steel
- Product Size:
- 1-1/4"
- Product Group:
- Plumbing Fittings
Boshart FINS10012 – Frequently Asked Questions
1) Will the Boshart FINS10012 insert coupling work on 1-1/4 inch poly pipe?
Yes. The FINS10012 is a 1-1/4 inch insert coupling, sized so the barbed end slides inside the bore of 1-1/4 inch polyethylene tubing. Match it to the pipe's nominal size, not its outside diameter, since insert fittings go in the pipe rather than over it.
2) Do I need clamps to install a galvanized insert coupling, or does it come with them?
Clamps are a separate purchase. The FINS10012 relies on a barbed insert connection secured with a clamp or crimp ring on each side, so plan on two clamps per coupling, one over each barbed end. Nothing about the fitting itself threads or seals without them.
3) Is the Boshart FINS10012 threaded on either end?
No threads at all. Both ends are insert (barbed), so it joins two lengths of poly tubing in line without putting a threaded joint into the run. If you need to transition to threaded pipe or a valve, you want an insert-by-MIP or insert-by-FIP adapter instead of this straight coupling.
4) Can I bury a galvanized steel insert coupling or does it have to stay accessible?
It is built for buried and concealed work. The galvanized steel body is there to resist corrosion in wet, buried, or damp rough-in conditions where bare steel would rust early, which is why it shows up on well lines, irrigation supply, and below-grade poly runs.
5) Can I use this coupling to repair a broken poly well line?
That is one of its main uses. Cut back to sound pipe, slide the barbed ends into both cut lengths, and clamp each side. It is listed for well and irrigation supply lines, poly pipe repairs, and line extensions. Because it is a straight coupling, the two pipe ends need to come together in line, so you will want enough slack or a short filler length of 1-1/4 inch poly.
6) Why choose a galvanized steel insert coupling over a nylon or plastic one?
Both types use the same barbed insert connection and the same clamps, so they install identically. The difference is the body: galvanized steel handles the mechanical abuse of buried and rough-in work and resists corrosion in damp locations. Plastic insert couplings are lighter and cheaper to stock but flex more under clamp pressure. If the joint is going under grade or behind a wall where you will not get back to it, the steel body is the conservative pick.
How fast can I get the Boshart FINS10012 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 FINS10012 come with a warranty?
Absolutely. The Boshart FINS10012 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 FINS10012?
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