Aquarium Canister Filters for sale

Fluval 107 207 307 407 FX2 FX4 FX6 External Filter & Media Aquarium Fish Tank
Brand new · Fluval
£109.99 to £305.99
Free postage
Click & Collect
62 sold
6E +E^ B &* ]R wE. B?!Q| T/ $S p o n s o r e d
Fluval 107 207 307 407 External Aquarium Filter with Fittings Hose and Media
Brand new · Fluval
(30)
£109.99 to £216.99
Free postage
Click & Collect
18 sold
+^QO Y&C* 3]R w.KB?!| I/M $S p o n s o r e d
Aquarium Fish Tank External Canister Filter & Media with Optional UV Steriliser
Brand new
£14.99 to £84.99
Free postage
Click & Collect
368 sold
+OV^ &* WW ]00 w.HR ?!|T/ $S p o n s o r e d
Aquarium Fish Tank External Filter - Optional 9w UV Steriliser + Media EF Models
Brand new · All Pond Solutions
£64.99 to £99.99
Free postage
Click & Collect
1,886 sold
+E^ &5 1* G] I w.X ?!|/ 1$S p o n s o r e d
fluval 407 external filter used
Pre-owned · Fluval
£141.12
£8.41 P&P
0+C P^V &* ] wD.?U PN! 0|S/ $
Hidom External Aquarium Filter Fish Tank Canister With Media Tropical And Marine
Brand new · Hidom
(9)
£9.95 to £69.95
Free postage
Click & Collect
447 sold
K1+^ & *D H] w .N?!|/0 $RU
Fluval Spare Parts Genuine Replacements Filter Impellers Hose 107 207 307 407
Brand new · Fluval
(20)
£7.95 to £41.75
Free postage
Click & Collect
31 sold
FM PN+^ &*J 1] K H w.UQ? !|/ $
1KG - Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!
Brand new
£17.99
£2.99 P&P
Click & Collect
212 sold
9I +^C &*5 J ] w.P?!|/ ZI H$
FX4 FILTER UPGRADE KIT- 3Kg BIOHOME ULTIMATE, FOAMS + FILTER START BALLS
Get your Fluval FX4 filter working properly
Brand new
£76.99
£7.99 P&P
Click & Collect
0+^ Y &SG * ]B9 w.?!|Z9/ J $
Aquarium Fish Tank External Filter 400L/H Free Media All Pond Solutions EF-150
Brand new · All Pond Solutions
(170)
£34.99
Free postage
Click & Collect
5,331 sold
+PU ^ NQ &9*B D T ]O w.?!|/ $
500g Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!
Brand new
£9.49
£2.99 P&P
Click & Collect
65 sold
+^ &AH* ] w 2.A P?7! |0/Y $
5KG - Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!
Brand new
£84.99
Free postage
Click & Collect
93 sold
5L+ ^8 &* 4] LwE 7.C ?X!W| / $
Oase FiltoSmart Thermo External Filter with Heater Aquarium Filtration Fish Tank
Brand new
£99.99 to £139.95
Free postage
Click & Collect
52 sold
7+^7 KW& * 7L] w.W?!|8/ 6$
Sunsun 3000l/h External Canister Filter Fish Tank Aquarium with UV Flow Control
Brand new · SUNSUN
£179.99
Free postage
Click & Collect
314 sold
7+^ Q K8& *XF ] w.?E!V|/ $S p o n s o r e d
External Canister Filter Booster Add On for Aquarium Fish Tank EF 1.2L or 2.3L
Brand new
£7.49 to £19.99
Free postage
Click & Collect
122 sold
+JA^ & * 6S] w.?I!I|/ W$S p o n s o r e d
Fluval FX4 Canister Filter External Filtration Media for Fish Tank Aquarium
Pre-owned · Fluval
£177.52
or Best Offer
£10.00 P&P
Click & Collect
+M^A &* BD AX ] N w.C?! RU |/ $S p o n s o r e d
Oase FiltoSmart 60 100 200 300 External Filter Aquarium Fish Tank Pump Canister
Brand new
£49.94 to £107.90
Free postage
Click & Collect
7+Y^ &*F H] w. ?!|/ U$H H
Fluval FX6 External Aquarium Filter Canister Filtration System
Brand new · Fluval
£265.91
Free postage
Est. delivery Fri, May 2
4 watching
+W^ W &*5 ] w.I? 4!|L I/M J $
Betta Choice External Canister Filter Aquarium Fish Tank Filtration 150-1500L
Brand new
£68.99 to £179.99
Free postage
Click & Collect
+^ &S*K ] w .?O1 !|F/Z $ 3
FX6 FILTER UPGRADE KIT- 5Kg BIOHOME ULTIMATE, FOAMS + FILTER START BALLS
Get your FX6 filter working properly
Brand new
£112.99
£7.99 P&P
Click & Collect
+S^ X &9* ] w.?H! |/ $EN
Fluval 107 207 307 407 FX External Power Filter Include Media Aquarium Fish Tank
Brand new · Fluval
(35)
£109.99 to £305.99
Was: £406.99was - £406.99
Free postage
Click & Collect
62 sold
+R^ &L* ] 0w.A? 5!D|/ 0 $
Aquarium Fish Tank External Filter Optional 9w UV Steriliser + Media - HW Series
Brand new
£58.99 to £98.99
Free postage
Click & Collect
Y1+^ &* ] C wU J.?!4|/ $ U
Aquarium Fish Tank External Canister Filter - SUNSUN-YBF 500
Brand new · SUNSUN
£59.99
(£59.99/Unit)
Free postage
Click & Collect
47 watching
+^2T &*AK ] w.?I!B| 6/4 $
GENUINE FLUVAL104 105 204 205 106 206 SEALING O RING GASKET A20038 HEAD SEAL
Brand new · Fluval
(81)
£8.95
Free postage
Click & Collect
1,567 sold
4Z+ ^ N&I* ] Vw5 0L.? !|/ $
Water Filter Intake for Fluval 107/207/307/407replacment – Safe for Fish &Shrimp
Brand new · Unbranded
£12.16
or Best Offer
Free postage
Click & Collect
19 sold
+^F0 & 6* Y] w .7?I O!6 S|/V $
Fluval Spray Bar Kit For 107 207 307 407 & Aquarium Filters
Brand new · Hagen
(25)
£15.75
Free postage
Click & Collect
522 sold
6+^ &*R FC] UwG. 8E?! S|/ $
AQUAEL HYPERMAX 4500 WITH BLUETOOTH External Filter - Fish Tank Filter Aquarium
Brand new · Aquael
£384.95
Free postage
Est. delivery Thu, May 1
47 watching
UG +89 2C^ &* J]N Aw.?!|/ $
400L/h Canister Pump Filter Set External Filtration Fish Tank Aquarium Marine
Brand new · Unbranded
£34.99
or Best Offer
Free postage
Est. delivery Fri, May 2
42 sold
+G^ 0&* ] CB w.25 C?!|/ $7
Aquarium Fish Tank External Filter - UV Steriliser / FREE Media - EF1+ EF2+ EFX+
Brand new · All Pond Solutions
(5)
£84.99 to £109.99
Free postage
Click & Collect
398 sold
+^ 6S&* TF] W w.9 ?!8|/ $7 S p o n s o r e d
Aquarium Fish Tank External Canister Filter - AQUACRAFTSMAN 812
Brand new
£40.99
(£40.99/Unit)
Free postage
Click & Collect
+U^8 &* ]EY wYR 9.1?!|/ 3$S p o n s o r e d
Oase FiltoSmart External Aquarium Filtration System Compact Fish Tank Filter
Brand new · OASE
(5)
£49.99 to £109.99
Free postage
Click & Collect
47 sold
Y+^ &J * ] wXP. ?4!K| /P $F S p o n s o r e d
Aquarium Fish Tank External Filter - 9w UV Steriliser FREE Media 1000 - 2000 L/H
Brand new · All Pond Solutions
(15)
£74.98 to £99.99
Free postage
Click & Collect
369 sold
5+0^ &*RP 2 ]5 w W.?!|/ $O S p o n s o r e d
Jebao External Aquarium Canister Filter Taps Hose 2 or 3 Trays Fish Tank Clean
Brand new · Jebao
(53)
£54.95 to £64.95
Free postage
Click & Collect
105 sold
GK+ ^ M&J* MY] w. WN? Y!I|/ $
AllPondSolutions EF-250 Aquarium External Fish Tank Filter - 800 Litre/Hour
Brand new · All Pond Solutions
(10)
£42.99
Free postage
Click & Collect
776 sold
+J1^ &*CD ] w.?!YN |Q/S $
FLUVAL FX6 FX4 FX2 EXTERNAL POWER FILTER WITH MEDIA CANISTER FISH TANK AQUARIUM
Brand new · Fluval
(35)
£224.99 to £305.99
Free postage
Click & Collect
283 sold
+^ BG&* DP] Cw.V?!|/ T R$
Aqua One Aquis Advance 750 Pro External Aquarium Fish Tank Canister Filter
Brand new · Aqua One
(2)
£79.99
Was: £95.99was - £95.99
Free postage
Click & Collect
Only 2 left
Z+^ &*3 KL HX ] w.? !|/28 $
3KG - Biohome Marine Ultimate Saltwater Marine Filter Media! UK's Best Selling
Brand new
£52.99
£2.99 P&P
Click & Collect
BG +^3 8 X&*X 0]W w.? !W|/ $
Hidom Aquarium External Canister Filter Power Filtration Include Media Taps Hose
Brand new · Hidom
(33)
£5.15 to £69.95
Free postage
Click & Collect
533 sold
O+R^ J9 W&* A ] w.Y?V!|/ $
Aquarium Fish Tank External Filter - FREE Media - EF1 EF2 EFX All Pond Solutions
Brand new · All Pond Solutions
(8)
£74.99 to £99.99
Free postage
Click & Collect
362 sold
IL+^ & *S ] w5 Y.?!|/ 0$ GS p o n s o r e d
400L/H Canister Filter Set External Filtration Fish Tank Aquarium Marine UK
Brand new · Unbranded
£34.99
or Best Offer
Free postage
Est. delivery Fri, May 2
38 watching
D+^N &CF * 5]1 T w.O?!| / $S p o n s o r e d
Legend Grey Aquarium Silicone Hose 12/16mm 16/22mm Fish Filter Pipe Grey
Brand new
£14.99 to £18.99
Free postage
Click & Collect
4J+^ &* ] ZQw. T?!F| B/ $T
FLUVAL 104/105/204/205/304/404/305/405 AQUASTOP GENUINE A20060 FILTER VALVE
Brand new · Fluval
(44)
£17.50
Free postage
Click & Collect
647 sold
+QA^ 3 7 W&4 * ] w.?T!X| Q/R $
REPLACEMENT MOTOR SEAL RING FLUVAL 104 204 105 205 106 206 107 207
Brand new · Fluval
(81)
£9.99
Free postage
Click & Collect
Only 3 left
PM+^ & *I7 ] 9 E H9 Hw.?! |/ $
Aqua One Ocellaris External Canister Filter Aquarium Fish Tank Pump Media
Brand new · Aqua One
(1)
£46.75 to £149.99
Free postage
Click & Collect
37 watching
+IM N^ O& * V] 1w. ?!|8B/ 8$
New listingOase BioMaster Thermo 600 External Aquarium Filter 300w heater built in
Pre-owned
£156.72
or Best Offer
£8.41 P&P
+^Q R& J*2 ] U3 w.?!|/ M 5 $
External Aquarium Fish Tank add on Filter 2.3L - All Pond Solutions EF-2-Booster
Brand new · All Pond Solutions
£19.99
Free postage
Click & Collect
1,495 sold
+^ &Z6* ]O Zw.?!|/ $R
Fluval 307 External Power Filter Includes Media Aquarium Fish Tank Replaces 306
Brand new · Fluval
(36)
£159.99
Free postage
Click & Collect
122 sold
E6 +^DT 5&C* ] w.? !|/ 0$
500 L/H & 800 L/H Aquarium Fish Tank Hang On Back Filter with 5w UV Steriliser
Brand new · All Pond Solutions
(15)
£5.15 to £29.99
Free postage
Click & Collect
210 sold
+^ X&*0 ] 1 wC .?!|35 / GK$
OASE INDOOR FILTOSMART EXTERNAL THERMO/NON-THERMO AQUARIUM FILTER FISH TANK
Brand new
£76.95 to £121.99
Free postage
Click & Collect
51 watching
+^ NO& * NJ ] w.?2X!|/ I N $
Fluval FX6 External Filter
Pre-owned · Fluval
(35)
£208.72
or Best Offer
£8.41 P&P
Est. delivery Fri, May 2
N+E^ & XW* ] w7.?!|/ $E
EHEIM Professional II / 2 2026 (Aquarium Fish Tank external canister filters)
Pre-owned · EHEIM
£59.90
£10.55 P&P
Est. delivery Fri, May 2
13 watching
4M +H^ &*0 1] Cw. ?!|/ $XD
Oase FiltoSmart Thermo 100 External Aquarium Fish Tank Filter
Brand new
(1)
£95.09
Was: £174.99was - £174.99
Free postage
Click & Collect
Only 1 left.
+^B &* D J6 XA] w. 7?!9 OY |/ $
Oase Biomaster 350 Thermo Filter
Pre-owned
£99.52
or Best Offer
£6.56 P&P
0 bids
1d 22h
+^M &*F ] w W.9 7?!|4 Q/1 KK $
FLUVAL FX6 CANISTER FILTER EXTERNAL FILTRATION MEDIA FISH TANK AQUARIUM MARINE
Pre-owned · Fluval
£229.99
Free postage
Click & Collect
13 watching
+Y5^ &B* ]O w .?QU 9L! ZW |/ $
Powerful Wave Maker Pump Aquarium Fish Tank
Brand new
£29.85 to £38.78
(£29.85/Unit)
Free postage
Click & Collect
+^ G&2 * L]S w. ZI ?!|/ $9
Aquarium fish tank external filter 1000L/H Free Media All Pond Solutions 1000EF
Brand new · All Pond Solutions
(348)
£64.99
Free postage
Click & Collect
6,530 sold
+^TT RR &* 2] L w.E3 O?C!| / $
Aquarium Spray Bar & Cap 12mm Compatible Fluval & Eheim & Most Filter Models
Brand new
£5.15
Free postage
Click & Collect
68 sold
S+^ D P&*L ]NA wEY .?VA!|/ $
EHEIM EXTERNAL CANISTER FISH TANK PRE-FILTER 4004320 EASYCLICK INTAKE TRAPS DIRT
Brand new · EHEIM
(65)
£13.85
Free postage
Click & Collect
1,222 sold
3Q+^ &V5 * ]I w.?0 !W|Q/ $
Jebao External Aquarium Filter One Touch Fish Tank Canister System with Media
Brand new · Jebao
(7)
£64.95 to £84.95
Free postage
Click & Collect
Z+^X &*TL C]N wE.J L?A !|/ $S p o n s o r e d
Jebao External Aquarium Fish Tank Filter System - 502/503/402/403 INCLUDES MEDIA
Brand new · Jebao
£9.99
Free postage
Est. delivery Thu, May 1
365 sold
T+Y ^K O 9&*J ] w. ?!|/ 08 2$S p o n s o r e d

Aquarium Canister Filters

Shop by category

2,596 results

Fluval 107 207 307 407 FX2 FX4 FX6 External Filter & Media Aquarium Fish Tank

Fluval 107 207 307 407 External Aquarium Filter with Fittings Hose and Media

Aquarium Fish Tank External Canister Filter & Media with Optional UV Steriliser

Aquarium Fish Tank External Filter - Optional 9w UV Steriliser + Media EF Models

fluval 407 external filter used

Hidom External Aquarium Filter Fish Tank Canister With Media Tropical And Marine

Fluval Spare Parts Genuine Replacements Filter Impellers Hose 107 207 307 407

1KG - Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!

FX4 FILTER UPGRADE KIT- 3Kg BIOHOME ULTIMATE, FOAMS + FILTER START BALLS

Aquarium Fish Tank External Filter 400L/H Free Media All Pond Solutions EF-150

500g Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!

5KG - Biohome Freshwater Ultimate Filter Media! UKs Best Selling Filter Media!

Oase FiltoSmart Thermo External Filter with Heater Aquarium Filtration Fish Tank

Sunsun 3000l/h External Canister Filter Fish Tank Aquarium with UV Flow Control

External Canister Filter Booster Add On for Aquarium Fish Tank EF 1.2L or 2.3L

Fluval FX4 Canister Filter External Filtration Media for Fish Tank Aquarium

Oase FiltoSmart 60 100 200 300 External Filter Aquarium Fish Tank Pump Canister

Fluval FX6 External Aquarium Filter Canister Filtration System

Betta Choice External Canister Filter Aquarium Fish Tank Filtration 150-1500L

FX6 FILTER UPGRADE KIT- 5Kg BIOHOME ULTIMATE, FOAMS + FILTER START BALLS

Fluval 107 207 307 407 FX External Power Filter Include Media Aquarium Fish Tank

Aquarium Fish Tank External Filter Optional 9w UV Steriliser + Media - HW Series

Aquarium Fish Tank External Canister Filter - SUNSUN-YBF 500

GENUINE FLUVAL104 105 204 205 106 206 SEALING O RING GASKET A20038 HEAD SEAL

Water Filter Intake for Fluval 107/207/307/407replacment – Safe for Fish &Shrimp

Fluval Spray Bar Kit For 107 207 307 407 & Aquarium Filters

AQUAEL HYPERMAX 4500 WITH BLUETOOTH External Filter - Fish Tank Filter Aquarium

400L/h Canister Pump Filter Set External Filtration Fish Tank Aquarium Marine

Aquarium Fish Tank External Filter - UV Steriliser / FREE Media - EF1+ EF2+ EFX+

Aquarium Fish Tank External Canister Filter - AQUACRAFTSMAN 812

Oase FiltoSmart External Aquarium Filtration System Compact Fish Tank Filter

Aquarium Fish Tank External Filter - 9w UV Steriliser FREE Media 1000 - 2000 L/H

Jebao External Aquarium Canister Filter Taps Hose 2 or 3 Trays Fish Tank Clean

AllPondSolutions EF-250 Aquarium External Fish Tank Filter - 800 Litre/Hour

FLUVAL FX6 FX4 FX2 EXTERNAL POWER FILTER WITH MEDIA CANISTER FISH TANK AQUARIUM

Aqua One Aquis Advance 750 Pro External Aquarium Fish Tank Canister Filter

3KG - Biohome Marine Ultimate Saltwater Marine Filter Media! UK's Best Selling

Hidom Aquarium External Canister Filter Power Filtration Include Media Taps Hose

Aquarium Fish Tank External Filter - FREE Media - EF1 EF2 EFX All Pond Solutions

400L/H Canister Filter Set External Filtration Fish Tank Aquarium Marine UK

Legend Grey Aquarium Silicone Hose 12/16mm 16/22mm Fish Filter Pipe Grey

FLUVAL 104/105/204/205/304/404/305/405 AQUASTOP GENUINE A20060 FILTER VALVE

REPLACEMENT MOTOR SEAL RING FLUVAL 104 204 105 205 106 206 107 207

Aqua One Ocellaris External Canister Filter Aquarium Fish Tank Pump Media

New listingOase BioMaster Thermo 600 External Aquarium Filter 300w heater built in

External Aquarium Fish Tank add on Filter 2.3L - All Pond Solutions EF-2-Booster

Fluval 307 External Power Filter Includes Media Aquarium Fish Tank Replaces 306

500 L/H & 800 L/H Aquarium Fish Tank Hang On Back Filter with 5w UV Steriliser

OASE INDOOR FILTOSMART EXTERNAL THERMO/NON-THERMO AQUARIUM FILTER FISH TANK

Fluval FX6 External Filter

EHEIM Professional II / 2 2026 (Aquarium Fish Tank external canister filters)

Oase FiltoSmart Thermo 100 External Aquarium Fish Tank Filter

Oase Biomaster 350 Thermo Filter

FLUVAL FX6 CANISTER FILTER EXTERNAL FILTRATION MEDIA FISH TANK AQUARIUM MARINE

Powerful Wave Maker Pump Aquarium Fish Tank

Aquarium fish tank external filter 1000L/H Free Media All Pond Solutions 1000EF

Aquarium Spray Bar & Cap 12mm Compatible Fluval & Eheim & Most Filter Models

EHEIM EXTERNAL CANISTER FISH TANK PRE-FILTER 4004320 EASYCLICK INTAKE TRAPS DIRT

Jebao External Aquarium Filter One Touch Fish Tank Canister System with Media

Jebao External Aquarium Fish Tank Filter System - 502/503/402/403 INCLUDES MEDIA

Best Selling

Fluval 307 Perfomance Canister Filter - A446

Fluval A443 780l/h Aquarium Fish Tank External Filter 220L

All Pond Solutions 1000EF Aquarium Fish Tank External Filter 1000 L/H

Hidom EX1000 Canister Filter

Fluval A20015 Replacement Ribbed Hose - Black

Fluval A219 FX6 External Aquarium Filter

All Pond Solutions EF-250 Aquarium External Fish Tank Filter

Fluval A440 107 Fish Tank External Filter

Top-rated

All Pond Solutions 1000EF Aquarium Fish Tank External Filter 1000 L/H

Fluval Motor Seal Ring for External Filter (A20038)

EHEIM External Prefilter and Powerhead

Fluval AquaStop Replacement Filter Valve - Black (A20060)

Fluval A20063 Seal Ring Gasket Filter for 304/404

Fluval FX4 External 1000L Aquarium Power Filter

Fluval 307 Perfomance Canister Filter - A446