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GratKit filament, ranked by £/kg — on offer now

Every GratKit listing in our filament section on Amazon UK, ranked by £/kg. The brand comes from Amazon’s own listing data.

Best £/kg Biggest discount Lowest price Best rated Newest

All (24) On offer now (13)

By material: PLA (3,501) PETG (1,118) PLA+ (919) TPU (378) ABS (233) ASA (152) PETG-CF (65) Nylon (51) PC (37) PLA-CF (21)

By finish (GratKit): All finishes Silk (5) Matte (1) Dual & triple colour (5) Translucent (3)

13 currently discounted.

Product	Material	Weight	Rating	Price	Per kg	Deal
GratKit PETG Filament 1.75mm, 6KG Bundle, High Toughness, PETG Gray	PETG	6 kg	4.2 out of 5 (90 Amazon ratings)	£43.99	£7.33	20% below
GratKit PETG Filament 1.75mm, 6KG Bundle, High Toughness, PETG White	PETG	6 kg	4.2 out of 5 (90 Amazon ratings)	£43.99	£7.33	20% below
GratKit PETG Filament 1.75mm, 6KG Bundle, Black,White,Red,Yellow,Blue,Green	PETG	6 kg	4.2 out of 5 (90 Amazon ratings)	£43.99	£7.33	20% below
GratKit High Speed PETG Filament Bundle 1.75mm 6KG, 6 Colours	PETG	6 kg	4.2 out of 5 (88 Amazon ratings)	£49.99	£8.33	—
GratKit PETG Filament 1.75mm 1KG, High Toughness, PETG Green	PETG	1 kg	4.6 out of 5 (279 Amazon ratings)	£10.99	£10.99	21% below
GratKit PETG Filament 1.75mm 1KG, High Toughness, PETG Transparent Yellow	PETG	1 kg	4.6 out of 5 (279 Amazon ratings)	£11.89	£11.89	15% below
GratKit PETG Filament 1.75mm 1KG, High Toughness, PETG Transparent Blue	PETG	1 kg	4.6 out of 5 (279 Amazon ratings)	£11.99	£11.99	14% below
GratKit PETG Filament 1.75mm 1KG, High Toughness, PETG Yellow	PETG	1 kg	4.6 out of 5 (279 Amazon ratings)	£11.99	£11.99	25% below
GratKit PETG Filament 1.75mm 1KG, High Toughness, PETG Blue	PETG	1 kg	4.6 out of 5 (279 Amazon ratings)	£11.99	£11.99	14% below
Gratkit Silk Dual Color PLA Filament, Coextrusion PLA Filament 1.75mm, +/-0.03	PLA	2 kg	4.2 out of 5 (23 Amazon ratings)	£78.55	£39.28	—
Gratkit Silk Tri-Color PLA Filament，3D Printer Filament 1.75mm, -0.03mm, 1KG/R	PLA	1 kg	4.6 out of 5 (395 Amazon ratings)	£40.46	£40.46	—
GratKit PLA+ Filament 1.75mm, 3D Printer Filament,+/-0.03mm,1KG, PLA Plus Whit	PLA+	1 kg	4.5 out of 5 (2 Amazon ratings)	£41.34	£41.34	—
Gratkit Silk Tri Color PLA Filament, 3D Printer PLA Filament 1.75mm, +/-0.03mm	PLA	1 kg	5.0 out of 5 (6 Amazon ratings)	£175.38	£175.38	—

Filament by brand

SUNLU (545) eSUN (521) ELEGOO (411) Polymaker (370) Deeplee (365) Creality (341) TINMORRY (264) OVERTURE (227) ERYONE (208) kexcelled (159) iBOSS (142) ANYCUBIC (133) Kingroon (131) Winkle (129) Bambu Lab (125) iSANMATE (109) GIANTARM (108) IEMAI (105) FLASHFORGE (96) AMOLEN (90) JAYO (85) NextShapes (85) 3DHoJor (84) Chitu Systems (75) colorFabb (71) R3D (66) Cookiecad (63) extrudr (61) JUSTMAKER (57) YOOPAI (54) XINGTONGZHILIAN (50) POJECITY (49) TECBEARS (49) Gizmo Dorks (47) 3DFUEL FUELING YOUR CREATIVITY (46) Inslogic (45) RAMBERY (44) YUANEANG (44) CCTREE (40) LANDU (39) HATCHBOX (38) Proto-Pasta (37) Amazon Basics (35) yxpolyer (35) Stronghero3D (34) GEEETECH (33) Filajoy3D (32) TEWIRROW (30) OVVNYXE (27) PrimaCreator (27) SainSmart (26) GratKit (24) NEOTRY (24) LOVOON (23) MarsWork (22) sourcing map (22) Spectrum Filaments (22) XZN (20) CC3D (19) JAREES (19)

Guides

Bed adhesion: what actually works
Glue sticks, hairspray, rafts, brims and expensive surfaces — an honest ranking of what fixes prints coming loose, starting with the free fix that solves most cases.
Do you need a filament dryer?
Wet filament is real and ruins prints, but a dedicated dryer is not the only answer. How to tell if moisture is your problem, and what to do about it.
Filament storage: dry boxes, vacuum bags and desiccant
Keeping filament dry is cheaper than drying it out. What actually works, what desiccant to use, and why the little sachet in the bag is already spent.
First layer calibration, properly
Nearly every adhesion problem and half of all print failures start in the first layer. How to set Z offset by eye, and what a good first layer actually looks like.

Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.