SUNLU PLA Filament Refill, 1.75 mm, White, 4 kg

1 / 7

Product guide

SUNLU PLA Filament Refill, 1.75 mm, White, 4 kg

SUNLU PLA Filament Refill is a 4 kg white refill for buyers who already have a compatible reusable spool. It is not ready to feed directly into a printer and the listing specifies compatibility with SUNLU and Bambu Lab reusable spools.

At a glance

Refill filament must be installed on an empty reusable SUNLU or Bambu Lab spool before printing.
The listing describes four white PLA portions totaling 4 kg and 1.75 millimeters in diameter.
Manufacturer-recommended settings are 210-240℃ nozzle, 50-65°C bed, and 100-200mm/s speed.
The manufacturer says the refill is vacuum-packed with a built-in desiccant.

Price

$39.99Save 20%

Reference price: ~~$49.99~~

Price checked: Nov 12, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

SUNLU PLA+2.0 3D Printer Filament, Black, 4-Pack (4KG) | Upgraded PLA+ Filament 1.75mm, Tougher & Stronger, Neatly Wound, +/-0.02mm Accuracy, Individually Vacuum Packed

$43.34

SUNLU PLA 3D Printer Filament, Red, 1KG | PLA Filament 1.75mm, Smooth Printing, Neatly Wound, +/-0.02mm Accuracy, Compatible with Most FDM 3D Printers

$16.99

Pros and cons

Pros

A 4 kg refill bundle suits buyers who use white PLA regularly and already have compatible reusable spools.
Reusing an existing spool avoids adding another empty spool to the user's collection.
The listing provides a recommended temperature and speed range as a starting point for tuning.

Cons

This is a spool-less refill and cannot be used directly in a printer. An empty compatible spool is needed.
The listed spool compatibility is limited to reusable SUNLU and Bambu Lab spools, or a spool printed by the user.

Technical specifications

11 specifications

Identity and material
Brand	SUNLU
Material	PLA
Color	4000g Pla White+white+white+white

Dimensions and installation
Filament diameter	1.75 millimeters
Weight listed	4 kg
Reusable spool compatibility	SUNLU and Bambu Lab reusable spools

Manufacturer printing guidance
Nozzle temperature	210-240℃
Bed temperature	50-65°C
Print speed	100-200mm/s

Other listed details
Manufacturer part number	SLUS-PLA-WT+WT+WT+WT-1KG*4-N
Warranty description	30-day

What to know before buying

Customers report clean, even prints and positive color consistency, but feedback also mentions occasional tangles and clogging. Spool fit and winding receive mixed comments, so check fit against the exact reusable spool you own before buying.

Who is it for?

A good fit for

3D-printer owners who use 1.75-millimeter PLA and already have compatible reusable spools.
Users who want a large supply of white filament for repeated prints.

Less suited to

Buyers who need filament ready to load without transferring it onto a reusable spool.
Users whose setup depends on a standard filament spool and who do not have a compatible reusable spool.

SUNLU PLA Filament Refill, 1.75 mm, White, 4 kg · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 338 ratings

5 stars84%84%
4 stars5%5%
3 stars2%2%
2 stars2%2%
1 star7%7%

Customer feedback is generally positive about filament quality, clean and even finishes, color consistency, and use with Bambu P1S printers. Some customers also report tangles that can lead to clogs, while spool fit and winding draw mixed feedback. That matters particularly here because the filament is supplied as a refill that must be mounted on a compatible reusable spool. Aggregate ratings are broadly favorable, but do not resolve those fit and handling concerns for a particular setup.

Positive themes

Customers highlight filament quality and clean, even print finishes.
Feedback notes positive color consistency between spools and successful use with Bambu P1S printers.

Negative themes

Some customers report tangles that can lead to clogging.
Some customers report problems fitting the refill to standard spools.

Mixed feedback

Spool winding and fit receive mixed feedback.

Frequently asked questions

Can this refill be used directly in a 3D printer?

No. The listing says it must first be installed on an empty reusable SUNLU or Bambu Lab spool.

What filament diameter is listed?

The listed item diameter is 1.75 millimeters.

What print settings does SUNLU recommend?

The listing recommends 210-240℃ for the nozzle, 50-65°C for the bed, and 100-200mm/s print speed. Treat these as starting points and adjust for your printer and print.

What should I know about fit and winding?

Customer feedback is mixed on fit and winding, with reports of tangles and spool-fit problems. Confirm your specific spool is compatible and inspect the refill during installation.