Brass 90° Street Elbow – 1-1/4" F.I.P. × M.I.P. | Marine Plumbing Fitting | MPN: BS-1-1/4X90
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1-1/4" Brass 90° Street Elbow — F.I.P. × M.I.P.
This 1-1/4" Brass 90° Street Elbow is a heavy-duty pipe fitting for marine plumbing applications where a right-angle direction change is needed in a threaded pipe run. The street elbow configuration — Female Iron Pipe (F.I.P.) on one end, Male Iron Pipe (M.I.P.) on the other — allows it to thread directly into another fitting without requiring a nipple between them, saving space and reducing potential leak points in tight installations.
Brass construction provides excellent corrosion resistance in both freshwater and saltwater plumbing systems, making it a reliable choice for bilge, raw water, exhaust cooling, and general marine plumbing runs where a durable, long-lasting fitting is required.
Key Features
- 90° street elbow — F.I.P. × M.I.P. configuration for direct fitting-to-fitting connection
- 1-1/4" pipe size — suits larger-diameter marine plumbing runs
- Brass construction — corrosion-resistant in freshwater and saltwater systems
- Eliminates the need for a separate nipple between fittings — compact installation
- Suitable for bilge, raw water, exhaust cooling, and general marine plumbing
Specifications
- Type: 90° Street Elbow
- Size: 1-1/4"
- Connection: F.I.P. (Female Iron Pipe) × M.I.P. (Male Iron Pipe)
- Material: Brass
- MPN: BS-1-1/4X90
Related Products
🔧 Parts Desk Insights
Best use case: This fitting is the right choice for marine plumbers and boatbuilders routing 1-1/4" threaded pipe runs in engine rooms, bilge systems, or raw water cooling circuits where a 90° turn is needed and space is tight. The street elbow configuration is preferred over a standard elbow in confined spaces because it threads directly into an adjacent fitting — no nipple required — keeping the overall assembly shorter and reducing the number of threaded joints that could potentially weep. At 1-1/4", this is a larger-diameter fitting suited to higher-flow applications such as raw water intakes, exhaust cooling lines, and bilge pump discharge runs on mid-to-large vessels.
Heads up: F.I.P. and M.I.P. threads are the same thread form as NPT (National Pipe Taper) — they are compatible with standard NPT fittings and pipe. Always use an appropriate thread sealant (PTFE tape or pipe dope rated for the application) on all threaded connections. Do not use in high-pressure applications without confirming the pressure rating of this fitting for your specific system. If you need a different size or configuration, contact us — we stock a range of brass marine plumbing fittings.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.