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BrightLine MFG HVAC Line Set Copper Fittings Kit – 3/8" & 3/4" 90° Elbows, Street Elbows, Couplings & 45° Fitting – Complete AC Install & Repair Set for Central & Split System Air Conditioners 13 pack

Based on 66 reviews
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$26.75
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At a glance

Condition
New
Size
3/4" Line Set Copper Kit
Model
3834-13Pkg
Weight
9.12 oz
Color
Copper
Outside Diameter
0.5 in
Set Name
Line Set Copper Kit
In the box
(1) 3/4 x 3/4 45 degree fitting (2) 3/4 x 3/4 Copper 90 Degree Elbow Fitting (2) Copper 3/4" x 3/4" x 90 Degree Street Elbow Fitting (2) Copper Coupling 3/4" x 3/4(2)Copper 3/8" x 3/8" 90 Degree Elbow Fittings (2) Copper 3/8" x 3/8" 90 Degree Street Elbow Fittings (2) Copper 3/8 x 3/8 couplingsInstall Instructions & Waranty Information

Features 6

  • COMPLETE 13-PIECE LINE SET KIT EVERYTHING IN ONE BOX: Includes (2) 3/4" x 3/4" 90 elbows, (2) 3/4" street elbows, (2) 3/4" couplings, (1) 3/4" 45 fitting, (2) 3/8" 90 elbows, (2) 3/8" street elbows, and (2) 3/8" couplings no extra trips to the supply house for a standard split-system hookup.
  • PRO-GRADE, THICKER-WALL COPPER: Manufactured from heavy-duty copper with wall thickness noticeably greater than budget hardware-store fittings. Holds a clean braze under high refrigerant pressure and resists pinhole leaks and corrosion for decades of reliable servic
  • BUILT FOR STANDARD 3/8" & 3/4" LINE SETS: Sized to match the most common suction (3/8") and liquid (3/4") line diameters used on residential and light-commercial condensers, evaporator coils, air handlers, and mini-splits compatible with R-410A, R-22, R454,and R-32 systems.
  • STREET ELBOWS + STANDARD ELBOWS = MORE JOBSITE FLEXIBILITY: Street elbows change direction without needing an extra coupling ideal for tight attic, closet, or condenser-pad clearances. Standard elbows and couplings handle longer runs, offsets, and mid-line repairs.

Description

BrightLine MFG Copper Line Set Fitting Kit — The Complete Solution for Central & Split System A/C InstallsWhether you're running a brand-new line set, repairing a damaged section, or adding an offset around an obstruction, this kit puts every fitting you need in one box. Built by BrightLine MFG from thicker, professional-grade copper, these are the same style of fittings HVAC technicians use every day on residential and light-commercial systems.What's Included (13 Fittings):(2) Copper 3/4" x 3/4" 90° Elbow Fittings(2) Copper 3/4" x 3/4" 90° Street Elbow Fittings(2) Copper 3/4" x 3/4" Couplings(1) Copper 3/4" x 3/4" 45° Fitting(2) Copper 3/8" x 3/8" 90° Elbow Fittings(2) Copper 3/8" x 3/8" 90° Street Elbow Fittings(2) Copper 3/8" x 3/8" CouplingsInstall Instructions & Warranty InformationWhy Technicians & DIYers Choose BrightLine MFGCheap fittings can mean thin walls, weak braze joints, and callbacks. BrightLine MFG copper fittings are made to hold up under real refrigerant pressure, so your joints stay leak-free long after the job is done.CompatibilityDesigned for standard 3/8" (suction line) and 3/4" (liquid line) diameters found on most central A/C condensers, evaporator coils, and split systems using R-410A, R-22, or R-32 refrigerant.Installation TipClean and flux all mating surfaces before brazing, use a wet rag to protect nearby components from heat, and always pressure-test the line set before charging the system. Full instructions are included in every kit.BrightLine MFG — professional-grade fittings, backed by a manufacturer warranty. Order today and get your line set done right the first time.

Specs 13

Brand BrightLine Manufacturing
Material Copper
Color Copper
Item Weight 9.12 ounces
Outside Diameter 0.5 inches
Manufacturer BrightLine MFG
Number of Packs 1
Set Name Line Set Copper Kit

Frequently asked questions

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Top Amazon Reviews


Good Quality Product!
Size: 7/8" Line Set Copper Kit
Great kit to repair or install AC lines. Fittings were of good quality and brazed nicely to my copper tubing.
Reviewed in the United States on April 29, 2026 by Rock

Buy again
Size: 3/4" Line Set Copper Kit
Very good quality
Reviewed in the United States on October 18, 2025 by kenneth knierim

As described and fast shipping
Size: 7/8" Line Set Copper Kit
Had all the attachments to install a split system.
Reviewed in the United States on June 23, 2025 by J. Bowers

Expectations
Size: 3/4" Line Set Copper Kit
Just what I expected
Reviewed in the United States on June 27, 2025 by David Giffin

Works great
Size: 7/8" Line Set Copper Kit
Quick ship, product as described
Reviewed in the United States on June 19, 2025 by dale hackney

Good to go!!!!
Size: 3/4" Line Set Copper Kit
Works for me!!!
Reviewed in the United States on May 6, 2025 by michael abernathy

Seem to be good Quality
Size: 3/4" Line Set Copper Kit
Seem to be good quality fit nice no complaints.
Reviewed in the United States on May 19, 2024 by Jesse O.

Must read before you buy!
Size: 3/4" Line Set Copper Kit
Junk product & poor quality control, but delivery was quite quick! I ordered two sets of these "HVAC" copper fittings. Both were delivered quickly the next day. They get 1 star for quick delivery. The fittings were very thin gauge material and bent/misshaped easily while brazing in place. That in and of itself was disappointing, but I was in a pinch and couldn't purchase them locally since all the HVAC supply houses locally were shut down for the weekend. I reluctantly pressed on and used the elbows and couplings from the first box without further issue. Upon opening the second box and after using one of those elbows, I found that the two Straight pipe coupler fittings they included were not the correct size. This box had mostly all HVAC fittings (HVAC uses outer diameter sizes) except the for the two straight couplings. This box incorrectly included 3/4 inch inner diameter fittings. For those of you unfamiliar with the difference, 3/4 Inner diameter and 3/4 outer diameter are significantly different in size. In a nutshell, my HVAC repairs came to a screeching halt and I had to wait for the local supply houses to open up on Monday to get what I needed. That is, to get what I had already grossly overpaid for and should have received in this item/box but did not. I suggest you buy elsewhere for better quality, better price, and better odds of getting what you need the first time. Conversly, if you dont mind junk as long as you get it fast, then this is a purchase meant just you. Unfortunately, because I used some the items from both boxes, I doubt the seller will do anything to make amends. I will be contacting them directly on 5-23-2025 and will update this review after that, if they make any attempt of good faith at all... If you see no update here, then they have still taken no action to show concern for their failure. ... show more
Reviewed in the United States on May 23, 2025 by Anthony
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