RectorSeal 87035 Pro-Fit 1/2" to 5/8" Quick Connect Reducing 90° Elbow, Push-to-Connect Refrigerant Fitting
The 87035 is the largest reducing elbow RectorSeal offers, joining 1/2" to 5/8" through a fixed 90° turn. These are suction-side diameters, and the combination of a size step and a hard corner in heavy tubing is exactly the joint that is slowest to braze and most awkward to bend. The 87035 handles both in one brass body with a patented double O-ring and grip-ring seal at each port, rated to 870 psig and 250°F continuous, assembled with nothing but a tubing cutter, a deburring tool, and a depth gauge.
Is a 1/2" to 5/8" Reducing Elbow the Right Fitting Here?
Both sides of this fitting carry suction-line volume, which raises the cost of getting it wrong. At these diameters the tubing is stiff enough that a swept bend usually needs more room than the space allows, and adding a separate straight reducer in line makes the assembly longer still. The 87035 keeps the whole transition inside the footprint of one fitting.
The legs seat to different depths: 1-1/4" on the 1/2" side and 1-5/16" on the 5/8" side. The 1/16" difference is small enough to ignore by accident and large enough to leave a tube short of its sealing surfaces, so set the gauge separately for each leg. Neither leg is tightened. Support the tubing on both approaches — at 5/8" the line has enough mass that an unsecured run will work against the joint over time.
Ideal for: Suction-side transitions at a corner on multi-zone and light commercial systems, equipment changeouts where the new condenser calls for a larger suction line, mechanical closets with no room for a reducer and an elbow in series, and repairs that must change both diameter and direction in a short run.
Smaller transition? Drop to the RectorSeal 87034 Pro-Fit 3/8" to 1/2" Reducing 90° Elbow, or make the same 1/2"-to-5/8" step in a straight run with the 87032 straight reducer.
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 | 87035 — 1/2" to 5/8" Pro-Fit Quick Connect Reducing 90° Elbow (one fitting) |
|---|---|
| Connection Type | Push-to-Connect, Fixed 90° Elbow Reducer (1/2" x 5/8") |
| 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 | 1-1/4" on the 1/2" leg, 1-5/16" on the 5/8" leg |
| 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 assembled reducing elbow per unit, seal stack and grip-ring collars factory-installed, cased 10 per box. Both legs fall within the range of the 87048 Pro-Fit Support Kit (1/4"–5/8"), whose gauge carries both the 1-1/4" and 1-5/16" marks. Hangers and straps to secure the run are under Installation Supplies.
Reducing Elbow & Sealing Features
87035 Large Transition Body
- Largest Pro-Fit reducing elbow, stepping 1/2" to 5/8"
- Two distinct seat depths, 1-1/4" and 1-5/16"
- Patented double O-ring seal at each port
- Grip ring matched to each leg's diameter
- Machined internal transition between the two bores
- 870 psig design pressure on both sides
- 250°F continuous operating temperature rating
- UV and corrosion resistant brass construction
- Sight window on each leg for independent verification
- Listed on ICC-ES PMG-1616 to UL 207 and UL 1963
Suction-Side Transitions
- Combines a size step and a corner in heavy suction tubing
- Shorter assembly than a reducer and an elbow in series
- No nuts, wrench, or torque step on either leg
- No torch, brazing rod, flux, filler, or nitrogen purge
- Suits changeouts that call for a larger suction line
- Works where a swept bend would need more room than available
- Joins copper to copper or copper to coated aluminum
- Quick-release removal with the 87048 disconnect clip
- Approved for R-22, R-32, R-134a, R-290, R-410A, R-507, R-600a
- Packaged 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 reducing elbow in the Pro-Fit line?
The 87035, stepping 1/2" to 5/8". RectorSeal does not make a reducing elbow above this — transitions involving 3/4" or 7/8" tubing have to be handled with conventional fittings.
How deep does each leg of the 87035 seat?
1-1/4" on the 1/2" leg and 1-5/16" on the 5/8" leg. The 1/16" difference is easy to overlook, so set the depth gauge separately for each tube rather than marking both to one figure.
Which support kit covers the 87035?
The 87048 kit, spanning 1/4" to 5/8". Because 5/8" is the top of that kit's range, both legs of this fitting are covered by the one kit.
Why does the 5/8" leg need a deeper insertion than the 1/2" leg?
Seat depth scales with diameter across the whole Pro-Fit range — larger tube means a longer engagement to bring the grip ring and both O-rings onto their sealing surfaces. The published depths run from 1" at 1/4" up to 1-9/16" at 7/8".
Can the 87035 join a 1/2" copper line to a 5/8" coated aluminum line?
Yes. Pro-Fit fittings are approved for copper and coated aluminum, and the two materials can meet in the same fitting provided each tube matches its port diameter and both ends are cut square, deburred, and unscored where the O-rings seat.
Does the 87035 replace both a reducer and an elbow?
Yes — it performs both functions in one body, which removes the intermediate nipple and two of the joints a conventional assembly would need. Where the run continues straight, the 87032 straight reducer handles the size change on its own.
Click On Links Below For Documentation:
Technical Specifications
Brochure
Product Rating Certification
