SUNLU 4KG PLA Plus Filament Refill 1.75mm, 1000g PLA+ Filament Bundle 4 Packs, 3D Printer Filament Refill for Reusable Spools, Fit for Most Brand Spool. 1KG/Roll, Red+Klein Blue+Yellow+Green
Condition: New
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Availability:
Only 4 left in stock, order soon!
Arrives
Friday, Mar 20
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Color: 4kg Red+klein Blue+yellow+green
Size: PLA+ Refill
Features
- Easy To Install- SUNLU 3rd Reusable Spools are very easy to remove and install and are newbie friendly. The inside of the spool is clearly marked to align and snap into place. If there is any confusion, please feel free to contact customer service or watch the instructional video
- Less Plastic- SUNLU Refill PLA Plus filament offers a more sustainable alternative to traditional Spool. By eliminating the need for spools, reducing plastic waste and lowering your carbon footprint, you can enjoy high quality printing with a reduced environmental impact!
- SUNLU PLA PLUS 3D Filament- PLA PLUS filament is 3 times stronger than PLA Filament, the color is brighter, it has many advantages, Clog/Bubble/Tangle/Warping/Stringing free, easy to Use, better layer adhesion.
- Neatly Wound 3D Filament Spool- SUNLU R&D team has mastered advanced technology and produced Neatly Wound PLA Plus Filament, which is impossible for other brands. No knot, no winding, improve printing efficiency.
- Recommend Settings- We recommend printing at a Nozzle/Extrusion temperature of 210C - 235C (410F - 455F) and Bed/Platform temperature of 55C - 65C (131F - 149F).
- SUNLU Main 3D ProductsSUNLU offers a wide range of high-quality 3D printing products, including 3D printer filament, filament dryer, FDM 3D printer, 3D pen, 3D pen filament, 3D printer resin, LCD 3D printer, resin curing box, and other accessories, providing you with everything you need for a successful 3D printing experience.
Brand: SUNLU
Material: Polylactic Acid
Color: 4kg Red+klein Blue+yellow+green
Item Weight: 4 Kilograms
Item Diameter: 1.75 Millimeters
Manufacturer: SUNLU
Brand: SUNLU
Item Weight: 8.8 pounds
Package Dimensions: 10.2 x 7.52 x 7.4 inches
Color: 4kg Red+klein Blue+yellow+green
Material Type: Polylactic Acid
Number of Items: 4
Size: PLA+ Refill
Manufacturer Part Number: AWUS-PLA+-RD+KB+YL+GN-1KG*4-N
Date First Available: June 9, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Mar 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: 4kg Black+white+grey+transparent
Size: PLA+ Refill
SUNLU filaments are always great quality from my experience. I've used these on some printed spool holders I made a while back, and they fit great. Print quality has always seemed to be good on my Bambulab A1, and i haven't noticed any issues with adhesion, stringing, etc. that wasn't on my part. Definitely a good deal for the bundle of four.
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Reviewed in the United States on December 2, 2025 by Daniel Johnson
Color: 4kg Red+klein Blue+yellow+green
Size: PLA+ Refill
Packaged well, went on the spool easily, wraps pulled off easily, printed well without having to be dried first. Still printing well after 3 spools through.
Reviewed in the United States on January 21, 2026 by Kevin Kevin
Color: 4kg Red+klein Blue+yellow+green
Size: PLA+ Refill
Great filament! Just make sure that you have a spool that you can add a refill to. And make sure that you put the refill on the spool before cutting the tabs.
Reviewed in the United States on February 12, 2026 by ukcats71
Color: 4000g Pla+ Black
Size: PLA+ Refill
As labeled. Have had zero issues using multiple purchases of this product. No clogs, no issues with stringing. After properly drying, it’s enabled all bridges on prints, fine surface color and has had zero adhesion issues without using any extra tape or glue on my cold plate, my textured plates, and smooth sheets. Perfectly wound with no binding issues.
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Reviewed in the United States on February 21, 2026 by Michael brightsen Michael brightsen
Color: 4000g Pla+ Grey
Size: PLA+ Refill
I was quite surprised that my bambu lab spools fit these along with the sun lube brand spools. So this is going to be another go-to for refilling my filaments down the line. Durability and print quality is great, just like any other filament, as long as your machine is tuned.
Reviewed in the United States on January 25, 2026 by Jeff Berna
Color: 4000g Pla+ White
Size: PLA+ Refill
I've used Sunlu for a long time but was very disappointed with the quality recently. The filament produced very uneven layers and had some in pretty severe production defects that caused some failed prints. Narrow sections caused the filament to stop feeding correctly. That being said, the actual white color was nice and opaque and not semi-translucent like many filaments.
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Reviewed in the United States on December 26, 2025 by anselor anselor
Color: 4000g Pla+ Black
Size: PLA+ Refill
Seems to print good and is well packaged. They don't fit the existing SUNLU reusable spools tho? If I had read the description I would have maybe realized that. They are meant to fit the BAMBU spool which have a larger diameter mid sections. So when you place it on the SUNLU spools it just kind of flops around. Not an issue unless you don't already have a bambu spool of have an ability to print one.
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Reviewed in the United States on September 6, 2025 by Brody Port
Color: 4000g Pla+ Black
Size: PLA+ Refill
I appreciate the savings with refil filament. I buy a lot of Sunlu filament and I am all about saving money.
Reviewed in the United States on February 16, 2026 by Lee