Fairview 428 Brass Flare Union Coupling, 1/2" Tube OD.
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Fairview 428 Brass Flare Union Coupling (1/2" Tube OD) is a flare-style brass union made to join two compatible flared tube ends with a leak-resistant union connection.
Key Features
- Brass flare union coupling for connecting flared tube ends
- 1/2" Tube OD size (matches the tube outer diameter indicated by the part name)
- Union-style fitting designed for tube-to-tube flare connections
Intended Use
- Plumbing and piping systems that use SAE flare-style connections (where compatible)
- Hydronic/industrial tubing repairs and replacements (verify exact flare specification on the tube ends before installing)
- Marine and RV plumbing/tubing maintenance where a brass SAE flare union coupling is required
Product Details
- Product title (as listed): Fairview 428 Brass Flare Union Coupling, 1/2" Tube OD.
- SKU: 687-428
- Fitting type: Brass flare union coupling (tube-to-tube flare union)
- Tube size reference: 1/2" Tube OD
Parts Desk Insights
Best Use Case: Use when you need a brass flare union coupling to mate two compatible 1/2" tube OD flare ends and achieve a secure union connection.
Common Issues: Most fitment problems come from mismatched flare angle/spec (e.g., SAE vs. other standards) or incorrect tube OD/tube flare type. Before assembly, confirm the tube end flare spec and ensure the flare surfaces are clean and correctly formed for an even, complete seal.
Related Products & Accessories
- Browse related Fairview flare unions and tube couplings - No additional related products were provided for this item—please browse the store’s Fairview fittings/valves category for matching flare unions and tube connectors.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.