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Best selling products: Best Penn-Plax Aquarium Undergravel Filters

BestsellingTop Rated
Fluval A199 Clarifier
Rank 1
Fluval A199 Clarifier
(12)
$94.95 New
No used products available
Fluval A449 100gal Perfomance Canister Filter - Black
Rank 2
Fluval A449 100gal Perfomance Canister Filter - Black
(84)
$219.99 New
$74.55 Used
Fluval A219 High Performance Canister Filter
Rank 3
Fluval A219 High Performance Canister Filter
(82)
$359.99 New
$199.00 Used
Fluval FX2 Super Canister Filter
Rank 4
Fluval FX2 Super Canister Filter
(7)
$199.99 New
$195.69 Used
Fluval Fx4 2650L High Performance Canister Filter
Rank 5
Fluval Fx4 2650L High Performance Canister Filter
(87)
$280.00 New
$100.00 Used
Fluval A203 UVC In-Line Clarifier
Rank 6
Fluval A203 UVC In-Line Clarifier
(36)
$68.99 New
$29.99 Used
Fluval Fx5 Ribbed Spare Hosing Hose 4m for External Filter Fish Tank Tubing - A20236
Rank 7
Fluval Fx5 Ribbed Spare Hosing Hose 4m for External Filter Fish Tank Tubing - A20236
(11)
$29.95 New
No used products available
iMountek 28 gal. Tank Canister Filter - GPCT1715
Rank 8
iMountek 28 gal. Tank Canister Filter - GPCT1715
(21)
$41.05 New
No used products available
Marineland Magniflow Canister Filter - ML90751
Rank 9
Marineland Magniflow Canister Filter - ML90751
(24)
$97.00 New
No used products available
Seachem Tidal 110 Aquarium Power Filter
Rank 10
Seachem Tidal 110 Aquarium Power Filter
(51)
$81.99 New
$52.99 Used
Fluval AquaClear AC110 Power Filter 60-110 US Gal #19620
Rank 11
Fluval AquaClear AC110 Power Filter 60-110 US Gal #19620
$85.00 New
No used products available
AquaClear Power Filter - 110 V
Rank 12
AquaClear Power Filter - 110 V
(110)
$12.89 New
No used products available
Fluval 307 330L Performance Canister Filter
Rank 13
Fluval 307 330L Performance Canister Filter
(37)
$142.99 New
$70.00 Used
Fluval Sea PS2 Mini Protein Skimmer - Black (14324)
Rank 14
Fluval Sea PS2 Mini Protein Skimmer - Black (14324)
(13)
$34.99 New
$14.00 Used
Fluval FX6 Service Kit
Rank 15
Fluval FX6 Service Kit
(8)
$59.34 New
No used products available
Top Fin PF30 Silenstream Filter Cartridges
Rank 16
Top Fin PF30 Silenstream Filter Cartridges
(10)
$10.99 New
$10.33 Used
Marineland Penguin Power Rite-Size C Filter Replacement Cartridge - 6 Count
Rank 17
Marineland Penguin Power Rite-Size C Filter Replacement Cartridge - 6 Count
(500)
$13.03 New
No used products available
Coralife BioCube Protein Skimmer (100538604)
Rank 18
Coralife BioCube Protein Skimmer (100538604)
(15)
$47.00 New
$40.00 Used
Fluval 207 External Canister Filter (A443)
Rank 19
Fluval 207 External Canister Filter (A443)
(16)
$80.00 New
$64.99 Used
Tetra Whisper Power Filter 60 / 300 GPH for 30-60 Gallon Fish Aquariums
Rank 20
Tetra Whisper Power Filter 60 / 300 GPH for 30-60 Gallon Fish Aquariums
(1)
$37.99 New
No used products available
Marineland PF0350B 350GPH Penguin Power Filter
Rank 21
Marineland PF0350B 350GPH Penguin Power Filter
(275)
$16.43 New
No used products available
Aqueon 100106419 Quiet Flow Large Filter Cartridge - 12 Pack
Rank 22
Aqueon 100106419 Quiet Flow Large Filter Cartridge - 12 Pack
(196)
$15.96 New
No used products available
2 Aqueon 06080 QuietFlow 10 Power Filter 100gph
Rank 23
2 Aqueon 06080 QuietFlow 10 Power Filter 100gph
(54)
$21.50 New
$7.99 Used
Sicce Shark Skimmer 150 Internal protein SIC211
Rank 24
Sicce Shark Skimmer 150 Internal protein SIC211
$94.00 New
No used products available
Marineland PA013704 Bio Wheel Filter
Rank 25
Marineland PA013704 Bio Wheel Filter
(135)
$9.99 New
No used products available
Aqueon QuietFlow 10 E Internal Power Filter 10gal Small
Rank 26
Aqueon QuietFlow 10 E Internal Power Filter 10gal Small
(4)
$16.99 New
$13.75 Used
MarineLand 10.5 inch Magnum Polishing Internal Canister Filter - ML90770-00
Rank 27
MarineLand 10.5 inch Magnum Polishing Internal Canister Filter - ML90770-00
(54)
$65.00 New
$39.99 Used
Tétra Whisper 40i Internal Tank Power Filter with BioScrubber (25818)
Rank 28
Tétra Whisper 40i Internal Tank Power Filter with BioScrubber (25818)
(120)
$30.00 New
$25.00 Used
Aqueon 100106088 Replacement Filter Cartridges, Size L - 6 Pack
Rank 29
Aqueon 100106088 Replacement Filter Cartridges, Size L - 6 Pack
(164)
$21.49 New
$13.45 Used
225GPH Canister Filter External Aquarium Filter Ultra-Quiet Water
Rank 30
225GPH Canister Filter External Aquarium Filter Ultra-Quiet Water
$92.90 New
$43.95 Used
FILMTEC RO MEMBRANE 100 GALLON PER DAY 100 GPD - 2 FILTERS
Rank 31
FILMTEC RO MEMBRANE 100 GALLON PER DAY 100 GPD - 2 FILTERS
(6)
$54.99 New
No used products available
AQUANEAT 3 Pack Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish T
Rank 32
AQUANEAT 3 Pack Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish T
(3)
$8.23 New
No used products available
Aqueon QuietFlow E Internal Power Filter up to 3 gal Fresh or Salt WaterAquarium
Rank 33
Aqueon QuietFlow E Internal Power Filter up to 3 gal Fresh or Salt WaterAquarium
(10)
$13.99 New
No used products available
Fluval FX Spray Bar Kit Aquarium Filter Water Aeration Accessory
Rank 34
Fluval FX Spray Bar Kit Aquarium Filter Water Aeration Accessory
$34.99 New
No used products available
biOrb Filter Cartridge Aquarium Service Kit (‎46014)
Rank 35
biOrb Filter Cartridge Aquarium Service Kit (‎46014)
(5)
$5.00 New
No used products available
EHEIM Classic External Canister Filter with Media - 66 Gal (2213371)
Rank 36
EHEIM Classic External Canister Filter with Media - 66 Gal (2213371)
(17)
$122.99 New
$59.98 Used
AQUA-Tech EZ-Change Aquarium Filter Cartridge (PL-T133-06)
Rank 37
AQUA-Tech EZ-Change Aquarium Filter Cartridge (PL-T133-06)
(116)
$9.95 New
No used products available
OASE 56930 Biosmart 10000 Pond Filter
Rank 38
OASE 56930 Biosmart 10000 Pond Filter
(4)
$463.99 New
No used products available
Fluval Fx4 Replacement Impeller Assembly A20208
Rank 39
Fluval Fx4 Replacement Impeller Assembly A20208
(3)
$27.99 New
No used products available
Floss Media Aquarium Filter Pad Bulk Roll 12x120 in 1x10 ft Made in USA (5 Pack)
Rank 40
Floss Media Aquarium Filter Pad Bulk Roll 12x120 in 1x10 ft Made in USA (5 Pack)
(6)
$14.45 New
No used products available
Top Fin EF-S Element Filter Cartridge - 12 Pack
Rank 41
Top Fin EF-S Element Filter Cartridge - 12 Pack
(5)
$10.39 New
$6.50 Used
Aqueon QuietFlow 20 Up to 30-Gallon Power Filter Cartridge
Rank 42
Aqueon QuietFlow 20 Up to 30-Gallon Power Filter Cartridge
(37)
$22.99 New
No used products available
Fluval C3 50 Gal Aquarium Power Filter
Rank 43
Fluval C3 50 Gal Aquarium Power Filter
(7)
$50.49 New
No used products available
3x Tetra Whisper Replacement Carbon Filter Cartridges Medium
Rank 44
3x Tetra Whisper Replacement Carbon Filter Cartridges Medium
(6)
$4.99 New
No used products available
Fluval Fx6 Lid Fastener Clamp - A20215
Rank 45
Fluval Fx6 Lid Fastener Clamp - A20215
(5)
$13.79 New
$11.99 Used
Top Fin PRO200 Multi-Stage Canister Filter
Rank 46
Top Fin PRO200 Multi-Stage Canister Filter
(8)
$83.71 New
$40.00 Used
Aqueon Filter Cartridge
Rank 47
Aqueon Filter Cartridge
(106)
$11.49 New
$7.18 Used
Bubble Magus Curve 7 Needle Wheel Protein Skimmer
Rank 48
Bubble Magus Curve 7 Needle Wheel Protein Skimmer
(4)
$259.99 New
$159.99 Used
Tétra 25816 Power Filter
Rank 49
Tétra 25816 Power Filter
(95)
$19.75 New
$14.99 Used
Tunze Comline Doc 9001 - Nano Protein Skimmer
Rank 50
Tunze Comline Doc 9001 - Nano Protein Skimmer
(12)
$124.99 New
No used products available
hygger 3 in 1 Reptile/Turtle/Aquarium Filter HG-979 (US PLUG/VOLTAGE)
Rank 51
hygger 3 in 1 Reptile/Turtle/Aquarium Filter HG-979 (US PLUG/VOLTAGE)
$19.99 New
No used products available
Tétra 26352-00 Whisper Filter Cartridges
Rank 52
Tétra 26352-00 Whisper Filter Cartridges
(23)
$11.50 New
No used products available
Top Fin Pf-s Silentstream Filter Cartridge 12 Count Size 5.5in X 3.1in
Rank 53
Top Fin Pf-s Silentstream Filter Cartridge 12 Count Size 5.5in X 3.1in
(4)
$18.95 New
$12.50 Used
Oase Indoor Aquatics BIOMASTER 250 11.2 Lbs Black
Rank 54
Oase Indoor Aquatics BIOMASTER 250 11.2 Lbs Black
(3)
$233.99 New
No used products available
3-Stage External Aquarium Canister Filter 265GPH 75Gal with Built-In Pump
Rank 55
3-Stage External Aquarium Canister Filter 265GPH 75Gal with Built-In Pump
(4)
$97.98 New
No used products available
EHEIM Aeh4005300 Intake Set 594 Canister Filters Parts for Aquarium
Rank 56
EHEIM Aeh4005300 Intake Set 594 Canister Filters Parts for Aquarium
(5)
$32.49 New
No used products available
Top Fin RF-L Retreat Filter Cartridges - 6 Pack
Rank 57
Top Fin RF-L Retreat Filter Cartridges - 6 Pack
(5)
$12.00 New
$8.95 Used
Tétra AQ-78052 XS for Aquarium Filtration Filter Cartridges - 4 Pack
Rank 58
Tétra AQ-78052 XS for Aquarium Filtration Filter Cartridges - 4 Pack
(65)
$8.99 New
No used products available
Aqueon Replacement Filter Cartridges Small (6 Pack)
Rank 59
Aqueon Replacement Filter Cartridges Small (6 Pack)
(92)
$14.49 New
$9.99 Used
Coralife Marine Filter with Protein Skimmer - Black (27778)
Rank 60
Coralife Marine Filter with Protein Skimmer - Black (27778)
(14)
$44.99 New
No used products available
Aqueon QuietFlow LED Pro Aquarium Power Filter 50 Starter Kit
Rank 61
Aqueon QuietFlow LED Pro Aquarium Power Filter 50 Starter Kit
(56)
$32.39 New
$24.99 Used
Aqueon Replacement Filter Cartridge Large 1pk
Rank 62
Aqueon Replacement Filter Cartridge Large 1pk
(7)
$6.99 New
No used products available
Penn-Plax Premium Under Gravel Filter System - Blue (CFU55)
Rank 63
Penn-Plax Premium Under Gravel Filter System - Blue (CFU55)
(109)
$28.49 New
No used products available
Aqua-Tech ML90740-00 30-60 Gallons 3-Step Filtration Power Aquarium Filter
Rank 64
Aqua-Tech ML90740-00 30-60 Gallons 3-Step Filtration Power Aquarium Filter
(38)
$82.89 New
No used products available
Seachem Tidal 75 Aquarium Power Filter
Rank 65
Seachem Tidal 75 Aquarium Power Filter
(36)
$76.08 New
$46.00 Used
Fluval Chi Filter/Foam Pads 5 x Value Packs (3 filters 1 foam pad)
Rank 66
Fluval Chi Filter/Foam Pads 5 x Value Packs (3 filters 1 foam pad)
(7)
$8.69 New
No used products available
Replacement Magnetic Impeller Assembly for Fluval Fx5 & Fx6
Rank 67
Replacement Magnetic Impeller Assembly for Fluval Fx5 & Fx6
(7)
$61.99 New
$50.00 Used
Hagen A20007 Fluval Intake Strainer
Rank 68
Hagen A20007 Fluval Intake Strainer
(2)
$8.99 New
No used products available
"Aqueon QuietFlow Internal Replacement Filter Cartridges, 2 pack"
Rank 69
"Aqueon QuietFlow Internal Replacement Filter Cartridges, 2 pack"
(18)
$8.92 New
No used products available
Tétra 26160 Whisper Bio-bag Cartridge Unassembled - 12 Pack
Rank 70
Tétra 26160 Whisper Bio-bag Cartridge Unassembled - 12 Pack
(287)
$10.39 New
No used products available
Hikari Bacto-surge Foam Filter XL 125 Gallon
Rank 71
Hikari Bacto-surge Foam Filter XL 125 Gallon
(12)
$25.49 New
$22.94 Used
Seachem Tidal 35 Gallon Power Aquarium Filter
Rank 72
Seachem Tidal 35 Gallon Power Aquarium Filter
(21)
$43.91 New
$25.99 Used
Marineland PF0200B Penguin Power Filter
Rank 73
Marineland PF0200B Penguin Power Filter
(118)
$5.00 New
No used products available
Fluval Aquarium Parts A20011 Intake Stem & Strainer Supply
Rank 74
Fluval Aquarium Parts A20011 Intake Stem & Strainer Supply
(5)
$20.99 New
No used products available
Fluval EDGE Pre-Filter Sponge - Black (A1387)
Rank 75
Fluval EDGE Pre-Filter Sponge - Black (A1387)
(17)
$7.29 New
No used products available
Aqueon QuietFlow LED Pro Aquarium Power Filter 30 for up to 45 Gallon
Rank 76
Aqueon QuietFlow LED Pro Aquarium Power Filter 30 for up to 45 Gallon
(4)
$20.98 New
No used products available
Replacement Impeller for SUNSUN Aquarium Canister Filter
Rank 77
Replacement Impeller for SUNSUN Aquarium Canister Filter
(2)
$16.18 New
No used products available
AQUA-Tech Ez-change #1 Aquarium Filter Cartridge for 5 to 15 Power Filters 3pack
Rank 78
AQUA-Tech Ez-change #1 Aquarium Filter Cartridge for 5 to 15 Power Filters 3pack
(4)
$6.50 New
No used products available
AquaClear 50 Aquarium Filter Impeller Assembly Replacement Part A634
Rank 79
AquaClear 50 Aquarium Filter Impeller Assembly Replacement Part A634
(6)
$13.49 New
No used products available
Fluval Hagen 307/407 Phosphate Remover 6pk Black
Rank 80
Fluval Hagen 307/407 Phosphate Remover 6pk Black
(1)
$11.89 New
No used products available
Fluval Spec Replacement Biomax Filter Media 2.1 Oz
Rank 81
Fluval Spec Replacement Biomax Filter Media 2.1 Oz
$8.99 New
No used products available
Fluval Ammonia Remover Nylon Filter Bags - 3 Count
Rank 82
Fluval Ammonia Remover Nylon Filter Bags - 3 Count
(8)
$10.29 New
No used products available
Eshopps Aeo19030 1-inch Bulkhead Bracket for Wet/dry Aquarium Filters and Sump
Rank 83
Eshopps Aeo19030 1-inch Bulkhead Bracket for Wet/dry Aquarium Filters and Sump
$6.99 New
No used products available
Fluval Fx4/fx5/fx6 Nitrite Remover Pad - 3 PK Ahga265
Rank 84
Fluval Fx4/fx5/fx6 Nitrite Remover Pad - 3 PK Ahga265
(6)
$9.49 New
No used products available
Elive Aquaduo Aquarium Fish Tank Water Filter Replacement Cartridges 5 Filters
Rank 85
Elive Aquaduo Aquarium Fish Tank Water Filter Replacement Cartridges 5 Filters
(2)
$7.76 New
No used products available
Hagen Fluval 307/407 Ammonia Remover 6pk
Rank 86
Hagen Fluval 307/407 Ammonia Remover 6pk
(6)
$10.99 New
No used products available
Marineland Impeller Assembly for Penguin 350B (PRIM350B)
Rank 87
Marineland Impeller Assembly for Penguin 350B (PRIM350B)
(21)
$29.47 New
No used products available
Aqueon Small 3 Pack Replacement Filter Cartridges with Activated Carbon
Rank 88
Aqueon Small 3 Pack Replacement Filter Cartridges with Activated Carbon
$11.95 New
No used products available
OASE Indoor Aquatics FiltoSmart 200 Aquarium Filter 55161
Rank 89
OASE Indoor Aquatics FiltoSmart 200 Aquarium Filter 55161
$150.00 New
No used products available
Fluval AquaClear 50 Ammonia Remover Insert Aquarium Media 5oz
Rank 90
Fluval AquaClear 50 Ammonia Remover Insert Aquarium Media 5oz
(2)
$9.00 New
No used products available
Tetra Whisper 20i Internal Power Filter 10 to 20 Gallons for Aquariums
Rank 91
Tetra Whisper 20i Internal Power Filter 10 to 20 Gallons for Aquariums
(61)
$27.49 New
$10.00 Used
EHEIM Aeh4005310 Spray Bar Set for Aquarium Water Pump
Rank 92
EHEIM Aeh4005310 Spray Bar Set for Aquarium Water Pump
(2)
$38.95 New
No used products available
Fluval Nano Aquarium Filter A455 015561104555
Rank 93
Fluval Nano Aquarium Filter A455 015561104555
(3)
$19.99 New
No used products available
Oase Indoor Aquatics Bioplus Thermo 100 Black
Rank 94
Oase Indoor Aquatics Bioplus Thermo 100 Black
$79.89 New
$74.99 Used
Marina Slim S15 Power Filter 15 Gallon
Rank 95
Marina Slim S15 Power Filter 15 Gallon
(5)
$31.99 New
No used products available
Penn-Plax Penn Plax Cascade 300 Internal Bio Sponge Filter
Rank 96
Penn-Plax Penn Plax Cascade 300 Internal Bio Sponge Filter
$2.96 New
No used products available
Marineland Penguin Pro Power Filter 275 GPH 50 Gallon Tank
Rank 97
Marineland Penguin Pro Power Filter 275 GPH 50 Gallon Tank
$44.99 New
No used products available
OASE Indoor Aquatics Filtosmart Thermo 300
Rank 98
OASE Indoor Aquatics Filtosmart Thermo 300
No new products available
No used products available
Aqua-Life Aqua-Alta 10 AQUARIUM Smart Hang On Filter for 10 Gallon Tanks
Rank 99
Aqua-Life Aqua-Alta 10 AQUARIUM Smart Hang On Filter for 10 Gallon Tanks
$10.93 New
No used products available
OASE BioStyle 30 Power Hang-On Filter 150 GPH Navy Blue Open Box
Rank 100
OASE BioStyle 30 Power Hang-On Filter 150 GPH Navy Blue Open Box
No new products available
No used products available