RectorSeal 87029 Pro-Fit 7/8" Quick Connect 90° Elbow, Push-to-Connect Refrigerant Fitting
The 87029 is the largest elbow RectorSeal builds in the Pro-Fit line — a fixed 90° brass fitting for 7/8" O.D. tubing, the diameter found on VRF trunk lines and large commercial suction runs. Bending 7/8" copper in the field is a machine job, and brazing a 7/8" ell is a long heat soak with a nitrogen purge running the whole time. The 87029 does neither: 1-9/16" of tube seats in each leg, the double O-ring and grip-ring stack does the sealing, and the joint holds at 870 psig and 250°F continuous.
Is a 7/8" 90° Elbow the Right Fitting for This Turn?
At 7/8", a swept bend is rarely an option on site. The tube needs a large radius and a proper bender to make one without collapsing, which is why runs this size are usually built from straight lengths and fittings. The 87029 fills the fitting role without the flame, which matters on the commercial jobs where 7/8" lines live — occupied buildings, rooftops, mechanical rooms, and anywhere a hot work permit and fire watch would otherwise be required.
Both legs need 1-9/16" of insertion, the deepest seat in the Pro-Fit range, so allow close to two inches of clean straight tube on each approach. Nothing is tightened — the elbow has no nuts — so the entire joint depends on a square cut, a clean deburr, and both legs reaching the mark. Support the run on both sides; a 7/8" line has real mass and the elbow should not be the thing carrying it.
Ideal for: VRF trunk and header line direction changes, large commercial split system suction runs, rooftop piping turns, mechanical room routing where flame work is restricted, and emergency repairs on large linesets that cannot tolerate the downtime of a brazed joint.
Need one size down? Use the RectorSeal 87028 Pro-Fit 3/4" Quick Connect 90° Elbow, or keep the run straight with the 87023 7/8" union coupling.
Fitting selection is based on measured tube outside diameter and system operating conditions. Installation must be performed by an EPA 608-certified technician in accordance with RectorSeal's published instructions and applicable mechanical codes. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Fitting | 87029 — 7/8" Pro-Fit Quick Connect 90° Elbow (one fitting) |
|---|---|
| Connection Type | Push-to-Connect, Fixed 90° Elbow (7/8" x 7/8") |
| Body Material | Brass |
| Seal Design | Patented Double O-Ring and Grip Ring |
| Design Pressure | 870 psig (60 bar) |
| Continuous Operating Temperature | 250°F (121°C) |
| Insertion Depth | 1-9/16" per leg — deepest in the Pro-Fit range |
| Assembly | Push-to-Connect — no tools, wrench, or torque required |
| Approved Tubing | Copper and Coated Aluminum Linesets |
| Certification | ICC-ES PMG-1616 (UL 207, UL 1963) |
One factory-assembled elbow per unit, cased 10 per box. This diameter requires the larger 87049 Pro-Fit Support Kit (3/4"–7/8") for its depth gauge and disconnect clips — the 1/4"–5/8" kit does not fit. Large-diameter tubing is listed under copper lines and fittings.
90° Elbow & Sealing Features
87029 Large-Bore Elbow
- Largest Pro-Fit elbow, machined for 7/8" O.D. tubing
- 1-9/16" seat per leg, the deepest in the family
- Full-size bore through the 90° turn
- Patented double O-ring seal at both ports
- Grip ring anchors a heavy large-diameter line
- 870 psig design pressure at maximum diameter
- 250°F continuous operating temperature rating
- UV and corrosion resistant for rooftop exposure
- Sight windows confirm seating on both legs
- Listed on ICC-ES PMG-1616 to UL 207 and UL 1963
VRF & Commercial Routing
- Replaces a machine-bent radius that cannot be made on site
- Avoids the long heat soak of a brazed 7/8" ell
- No nitrogen purge, brazing rod, flux, or filler
- No nuts and no torque step at any Pro-Fit diameter
- Eliminates hot work permits and fire watch on commercial jobs
- Built for VRF trunk lines and large suction runs
- Joins copper to copper or copper to coated aluminum
- Disconnect clips from the 87049 kit allow rework
- Approved for R-22, R-32, R-134a, R-290, R-410A, R-507, R-600a
- Packed 10 per manufacturer case
Specifications & Manuals
Product documentation includes the full Pro-Fit part number table, insertion depth specifications, approved tubing and refrigerant lists, and the ICC-ES PMG product rating certificate covering the certified pressure and temperature ratings.
Frequently Asked Questions
What is the largest Pro-Fit elbow available?
The 87029 at 7/8" O.D. There is no Pro-Fit elbow above this diameter, so larger tubing still requires a conventional brazed or mechanical fitting.
How deep does tubing seat in the 87029?
1-9/16" in each leg — tied with the 7/8" union for the deepest seat RectorSeal specifies. Allow close to two inches of clean, straight, deburred tube on both approaches.
Is the 87029 torqued after the tube is inserted?
No. Pro-Fit elbows are push-to-connect with no nuts, at every size. RectorSeal's published torque table covers the flare-nut fittings only — the sockets and service valves — which are not offered in 7/8" at all.
Which support kit works with the 87029?
The 87049 kit for 3/4" to 7/8". Its depth gauge and disconnect clips are sized for the large fittings; the 87048 kit tops out at 5/8".
Can the 87029 handle VRF trunk line direction changes?
7/8" is a common VRF trunk and header size, and the fitting carries the full 870 psig design pressure at that diameter. Confirm the system's actual operating pressures and temperatures fall within the certified ratings, and that the refrigerant in use is on the approved list.
Does the 87029 need to be installed in a particular orientation?
The fitting itself is not orientation-specific, but both legs must reach full insertion depth and both must be accessible enough to present the tube straight into the port. Support the tubing on each side so the elbow is not bearing the weight of an unsecured 7/8" run.
Click On Links Below For Documentation:
Technical Specifications
Brochure
Product Rating Certification
