SUNLU Filament Refill 1.75mm, 4 Black | petg Refill 4kg
Suitable for Bambu Lab Filament and SUNLU Reusable spools, Dimensional Accuracy +/- 0.02 mm
at Amazon· sold by SUNLU Industry
Go to AmazonWe are not ready to call this price.
We check at least every 12 hours and hold a day-by-day record of what this cost: 3 days of it so far. Calling a price high or low needs 7 of those days and at least one change, because a range needs two prices: this one has not moved since we started watching. If it is still $39.99 on October 27, this box will say so: a price that has held for 10 days is an answer too.
4 kg of PETG: $10.00 a kilogram at today’s $39.99. Every spool, per kilogram
Price history
Tracking since October 17, 2026 · 3 of 7 days to a verdict
The price has not changed since we started watching, so there is no line to draw yet. A chart appears the first time it moves.
Next time, from Amazon: change amazon.com to basketprice.com in a product’s address. This one is basketprice.com/dp/B0FG7S2H6Q.
Sales events
Next on the calendar: Black Friday, likely November 19–30. We keep checking this price through it and report here what it did.
Where to buy
- Held for
- 2d
- Checked
- 4h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
We earn a commission on purchases. It never affects our rankings.
What it is
4 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Size
- PETG Refill
- Color
- 4000g Petg Black+black+black+black
- Weight
- 8.82 pounds
- Number of items
- 4
Cheaper in 3D printer filament, and what changes
Things we track on the same shelf for at least 10% less than $39.99, with the attributes the retailers describe differently. Their words, not our judgement: we record prices, we do not test products.
SUNLU250g Filament Bundle 1.75mm, Multicolor 3D Printer Filament | 8 Small Spools, 2KG Total, Individually Vacuum Packed, Black+White+Grey+Chocolate+Sky Blue+Olive Green+ Sunny Orange+Sakura Pink$29.99 at Amazon $10.00 lessWeight: 4.41 pounds instead of 8.82 poundsNumber of items: 8 instead of 4
CrealityPLA 3D Printer Filament, Black & White, 2-Pack, 2KG Total | PLA Filament 1.75mm, Smooth Printing, Neatly Wound, +/-0.02mm Accuracy, Compatible with Most FDM 3D Printers$23.99 at Amazon $16.00 lessWeight: 4.4 pounds instead of 8.82 pounds
BAMBULABBambu Lab PLA 3D Printer Filament 1.75mm RFID 1kg with Spool, Black | MakerWorld Model Library, No Warping & Tangling, AMS-Compatible 3D Print Material, Fast Printing$26.15 at Amazon $13.84 lessWeight: 2.2 pounds instead of 8.82 pounds
Others we track in 3D printer filament
See all 3D printer filament prices
SUNLU4KG Bundle PLA Matte 1.75mm, Matte Surface 3D Printer Filament | Frosted Matte Finish Hides Layer Lines, 4 Pack 1kg Spool (2.2lbs) Reusable Spool (Black+Olive Green+Grey+Light Yellow)$39.991 offer · 3 recorded prices
SUNLU250g PLA Filament Bundle 1.75mm, Multicolor 3D Printer Filament | 8 Small Spools, 2KG Total, Neatly Wound, Individually Vacuum Packed, Black+White+Grey+Transparent+Red+Blue+Orange+Green$39.891 offer · 1 recorded price
SUNLUHigh Speed PLA Filament 1.75mm, 4kg, Black*4 | 30mm/s - 600mm/s Print Range, 1kg per Spool, Pack of 4, High Flow Speedy 3D Printer PLA Filament, Fast Printing, Neatly Wound$39.701 offer · 1 recorded price
SUNLUPETG Filament 1.75mm, 4kg, 2 Black+2 Black | 3D Printer Filament, Less Stringing, Good Layer Adhesion, High Toughness, PETG Filament 1.75 ±0.02mm$38.991 offer · 1 recorded price
SUNLU250g Filament Bundle 1.75mm, Multicolor 3D Printer Filament | 8 Small Spools, 2KG Total, Individually Vacuum Packed, Light Gold+Silver+Purple+Red+Orange+Yellow+Pink+Bronze$37.991 offer · 1 recorded price
SUNLU4KG High Speed ABS Filament, 1KG Spool, (4xBlack) | 350mm/s Rapid ABS 3D Printer Filament 1.75mm, Heat Resistance, Excellent Toughness, Fast Printing$42.991 offer · 1 recorded price
$39.99
at Amazon · we earn a commission