# SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg

SUNLU PLA Plus Filament Refill is a four-roll, no-spool PLA+ bundle for compatible reusable spools. The listing names black, white, grey and transparent, and claims compatibility with Bambu Lab AMS and reusable spools from several brands, making it relevant to owners who already have a suitable reel.

- [Original product page](https://bargainpostbox.co.uk/product/sunlu-pla-plus-filament-refill-175mm-4kg)
- [View offer](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SUNLU
- Model: SUNLU PLA Plus Filament Refill
- Category: Tools & Garden > Hardware & Building Materials
- Price: 30.98 GBP
- Previous price: 42.99 GBP
- Discount: 28%
- Price checked: 2026-11-12T14:58:32.738Z
- Rating: 4.4 / 5
- Reviews: 272

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Four 1 kg refill rolls are listed, with no spool supplied in the product title.
- The listing claims compatibility with Bambu Lab AMS and reusable spools, including SUNLU and ELEGOO options.
- Manufacturer claims include a filament diameter accuracy of +/-0.02 mm and vacuum-sealed packaging with desiccant.
- The stated colours are black, white, grey and transparent.

## Pros

- Four colour options are supplied as a 4 kg total refill bundle, according to the listing.
- No-spool refills can suit buyers who already have compatible reusable spools.
- The claimed diameter tolerance gives buyers a specific manufacturing target to compare against other filament listings.

## Specifications

### Identity
- Brand: SUNLU
- Model: SUNLU PLA Plus Filament Refill
### Dimensions and installation
- Weight listed: 4 Kilograms
- Filament diameter: 1.75 Millimetres
- Refill hole diameter: 82.5mm \(3.22inch\)
### Materials and protection
- Material listed: Polylactic Acid
- Colours listed: Black+White+Grey+Transparent
- Dimensional accuracy claim: +/-0.02 mm
### Pack and warranty
- Rolls listed: 4
- Product warranty: 1 year manufacturer

## Before you buy

- The title and listing details describe four 1 kg rolls in black, white, grey and transparent. Confirm the selected colour bundle and spool compatibility, since the refill requires a suitable reusable spool and the stated fit is a manufacturer claim.
- Manufacturer claims of increased toughness, smooth feeding, reduced warping and neat winding are not independently verified. Printing results can depend on the printer and setup.

## A good fit for

- 3D-printing users who need a 1.75 mm PLA+ refill in four listed colours.
- Owners of compatible reusable spools who prefer buying filament without another spool.
- Buyers seeking a multi-roll refill bundle for ongoing PLA printing.

## Less suited to

- Buyers who need filament supplied on a spool or whose printer setup does not accept 1.75 mm filament.
- Anyone needing a confirmed colour selection or spool fit beyond the listing's general compatibility claims.

## Customer feedback

Customer feedback describes the filament as reliable and good value, while reports on durability and adhesion are mixed. Some feedback mentions consistent extrusion or good layer adhesion, while other reports describe filament loosening on the spool or being pulled down its side. For buyers using the claimed neat-winding refill, these mixed reports make handling and spool fit worth considering. Aggregate ratings are mostly five-star, but they do not establish how the filament will perform in a particular printer.
- Positive themes: Customers describe the filament as reliable and good value.
- Mixed feedback: Durability feedback is mixed, with reports of consistent extrusion as well as filament loosening on the spool.
- Mixed feedback: Adhesion feedback is mixed, including praise for layer adhesion and reports of filament being pulled down the side.

## Frequently asked questions

### How much filament is included?
The title and feature listing state four 1 kg rolls, for 4 kg total.
### What is the filament diameter?
The listed item diameter is 1.75 Millimetres.
### Does it include a spool?
It is described as a no-spool refill. You need a compatible reusable spool for use.
### Which spools does the listing say it fits?
The listing claims compatibility with Bambu Lab AMS and reusable spools, including SUNLU and ELEGOO. Check that the refill dimensions suit your particular spool.

## Alternative options

- [SUNLU 4KG PLA+2.0 3D Printer Filament Refill, High Toughness PLA+ Filament Bundle, No-Spool 3D Filaments Refill 1.75mm for Reusable Spools Compatible with Bambu Lab 3D Printers, 1KG/Roll, White\*4](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [ELEGOO PLA Basic Refill 3D Printer Filament 1.75mm White 4KG, Vacuum-Sealed \| 3D Printer Filament No Spool, Dimensional Accuracy +/- 0.02mm, 4pcs 1kg Spools\(2.2bls\) PLA for Reusable Spool Refilling](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [OVERTURE 3D Printer Filament PLA 1.75mm 10kg Bundle, 10 Colors Set \| High Speed Printing, Popular Colors, Great Value, Accuracy ± 0.02 mm, Cardboard Spool, Fit Most FDM 3D Printers](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [Kingroon PLA Filament Bundle 1.75mm for 3D Printer, Filament 3D Printing Materials, 10KG 3D Filament Dimensional Accuracy ±0,02mm,3D Printer Filament PLA with 6\*Single 4\*Tri Colour](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [Creality PETG Filament Refill 3D Printer Filament,10 kg 1.75 mm\(22 lb\) Refilament for Bambu Lab Reusable Spool, Dimensional Accuracy ±0.03mm, PETG 10 White](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [2PCS for Bambu Lab A1/A1 Mini/P1S/P2S/H2D/A2L AMS Reusable Filament Spool \| Detachable Reel Holder, Twist-Lock Quick-Change, Fits PLA/PETG/ABS, Low-Temp ≤70°C, 3D Printer Accessory](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [ELEGOO CMYK PLA 3D Printer Filament 1.75mm 4KG Bundle, Precision Wound \| Rilievo White/Yellow/Megenta/Cyan, Lithophane High Dimensional Accuracy, 4pcs 1kg Spools\(2.2lbs\) for Most 3D Printers](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [SUNLU 4KG PLA+2.0 3D Printer Filament Refill, High Toughness PLA+ Filament Bundle, No-Spool 3D Filaments Refill 1.75mm for Reusable Spools Compatible with Bambu Lab 3D Printers, 1KG/Roll, Black\*4](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [DEEPLEE PLA Basic Refill Filament 1.75mm White 4kg Bundle \| No Spool 3D Printer Filaments, Accuracy±0.02mm, Easy to use Filament 3D Printing Materials, Fit for fdm 3d priners](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [ELEGOO PLA Basic Refill 3D Printer Filament 1.75mm Black 1KG \| 3D Printer Filament No Spool, Dimensional Accuracy +/- 0.02mm, 3D Printing PLA for Reusable Spool Refilling, Vacuum-Sealed](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [SUNLU Filament Dryer Box S2, Up to 70°C with 360° Surround Heating \| 3D Printer Filament Dryer Keeps Filament Dry During 3D Printing, Compatible with PLA/PETG/ABS/SILK/PA/PC, Black](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [ELEGOO PLA Filament 1.75mm Black 4KG, 3D Filament Dimensional Accuracy +/- 0.02mm, 4pcs 1kg Cardboard Spool\(2.2lbs\) 3D Printing Filament Fits for Most FDM 3D Printers](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)

## Add-ons

- [ELEGOO Rapid PLA Plus 3D Printer Filament 1.75mm Black 1KG, Up to 600mm/s \| PLA+ High Speed Printing, Dimensional Accuracy +/](https://bargainpostbox.co.uk/visit/sunlu-pla-plus-filament-refill-175mm-4kg)
- [ELEGOO PLA Filament 1.75mm Black 1KG, 3D Filament Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool\(2.2lbs\) 3D Printing Fi](https://bargainpostbox.co.uk/visit/elegoo-black-pla-filament-175mm-1kg)

## Images

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 1](https://bargainpostbox.co.uk/i/wTEft856PFmuDm12x2F5CKZb7Q_HasRmlWmrmgC0neEdPTAge_DeC_dofcay2klTsTzk2uWi21FZkDTn6-jx6grmg6NFW4aYFl2mpGYcScSbrBN7CebXrcYt.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 2](https://bargainpostbox.co.uk/i/w6GWm53ZxMAsp-YpyYSy8Hde0ZWhTadHxurx8WxtweQ7bY4A4CoBS0KjFrsAgyfCDk1QkKa1I_GNpVVNr9WV3wdWf8ZrVDtyBCrrQz8Z8W60wFrcW2SFVOa8.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 3](https://bargainpostbox.co.uk/i/1bXoni6bj4oYICb_xczMjdO7lIgnK81S3m1Fn4xEVEiQSKADJOGL6W_W0mJdQHjVhmlbqx01Vmdxe1PR4GSwgun7aEyPhBalNAuADMseubGs3GZOA5NFuzjd.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 4](https://bargainpostbox.co.uk/i/zqjIg_fP187P_rOUiXH0j9LZq1G9nWEsUKO2rZHrQOLHZ3w0LY6RdrrqwWkoiOep02es2HQ150T0FgVcj8LSFQFMQd_WZMGNjML9uvRkIuBhEt7wNQ1b3eou.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 5](https://bargainpostbox.co.uk/i/0pA06gF4TDOPythc90zv2faGP4EYBHND6IWHUdiBHvwLsAYfxPNbsbeDyUomgbtTMYVzOPGNcxd9dZPmDKejsXvLBAnCP5aMUruEzJVeRxNNlWWvTgiw-Qsp.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 6](https://bargainpostbox.co.uk/i/cetXwgna5iGV8Sl9d5GygZ6tdVJ29E4tAM2AVfA2NW2nT8zu7pM9xBiREsfbdry0D0Y8Bi-7GX35W5pBWqVBDqsZc64nl6KWXZh9gLPjgoeQIEhrgR9nesX1.jpg)

![SUNLU PLA+ Filament Refill, 1.75 mm, 4 kg — 7](https://bargainpostbox.co.uk/i/o0YIwSPNnV9uPrJVsD0ieGZtjtUfR6kVG6wC-edVik7Xn0kkkjsiJdUpFwBmYvLbfXHHvXhgSyaFiHcj_7QmIDmcgFTCgz73P5CcbWXsVdR6goECitZeUzYf.jpg)