Internal Aquarium Undergravel Filters

155 Results

RA Premium Under Gravel Filter - 70/90 gal
Brand New
(7)
$121.09
Free shipping
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MT Aquatics Under Gravel Filter UGF Shrimp Breeding | Fish Tank Filter DIY KITS
Brand New
$14.99 to $22.99
Free shipping
0⁣1⁣ ⁣S⁣G⁣C⁣ ⁣H⁣p⁣o⁣6⁣ ⁣n⁣s⁣o⁣r⁣G⁣e⁣7⁣ ⁣d⁣D⁣⁣G⁣⁣⁣⁣⁣
2 pcs Rigid Tubing 3/16" x 18" Replacement for Lee's Aquarium Undergravel Filter
Brand New
(4)
$12.49
Trending at $12.74
Free shipping
9⁣U⁣ ⁣⁣⁣1⁣⁣⁣G⁣⁣ ⁣⁣R⁣⁣0⁣⁣⁣ ⁣⁣⁣⁣⁣5⁣X⁣ ⁣⁣⁣8⁣
2 pcs Rigid Tubing 1" x 18" Replacement for Lee's Aquarium Undergravel Filters
Brand New
$19.99
Free shipping
6 watching
L⁣⁣⁣P⁣⁣⁣⁣⁣⁣⁣ ⁣L⁣⁣N⁣⁣ ⁣D⁣Q⁣ ⁣9⁣⁣⁣⁣⁣⁣⁣Y⁣ ⁣
2 Sets Under Gravel Filter Box UGF UGFB, for Shrimp Tank.
Brand New · Unbranded
$50.00
Free shipping
14 watching
O⁣⁣⁣I⁣⁣⁣ ⁣⁣⁣⁣⁣F⁣⁣⁣3⁣⁣⁣ ⁣⁣⁣⁣L⁣C⁣ ⁣⁣⁣Q⁣⁣
Penn Plax Undergravel Filter 20L/29 Gal (72.4 cm x 29.2 cm)
Brand New · Penn-Plax
$19.99
or Best Offer
$11.89 shipping
V⁣⁣Q⁣ ⁣2⁣⁣⁣J⁣⁣⁣⁣⁣ ⁣⁣C⁣⁣⁣⁣Y⁣⁣⁣⁣⁣⁣ ⁣⁣H⁣⁣
UGF Box Set | Under Gravel Filter Box for Shrimp and Fish Tank | Aquarium filter
Brand New
$45.27
$23.31 shipping
32 sold
⁣⁣W⁣K⁣⁣ ⁣⁣U⁣V⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣D⁣⁣8⁣ ⁣B⁣A⁣⁣ ⁣V⁣
Undergravel Filter Box (UGF) for Aquarium Fish Tank Shrimp Filtration
Brand New · Unbranded
$18.95
or Best Offer
Free shipping
⁣⁣⁣⁣⁣⁣8⁣⁣U⁣ ⁣⁣⁣⁣3⁣⁣⁣⁣⁣D⁣⁣⁣⁣⁣ ⁣⁣⁣7⁣⁣
20 Gal Undergravel Aquarium Filter 2 Plate System Aquarium Outfitters
Brand New
$20.99
or Best Offer
Free shipping
Z⁣R⁣ ⁣4⁣⁣⁣⁣0⁣ ⁣⁣J⁣H⁣ ⁣U⁣T⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣D⁣
Under Gravel Filter Box UGF UGFB, for Shrimp Tank.
Brand New · Unbranded
$28.00
Free shipping
0⁣⁣⁣0⁣ ⁣D⁣⁣H⁣⁣⁣⁣⁣ ⁣G⁣⁣⁣⁣⁣P⁣⁣⁣⁣⁣ ⁣Q⁣⁣T⁣⁣
Lee's Pet Products UGF Bagged Undergravel Economy Filter 5.5 gallons (7.5"x15")
Brand New
$19.31
or Best Offer
Free shipping
27 sold
7⁣⁣L⁣⁣⁣ ⁣⁣⁣⁣Z⁣⁣⁣X⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣1⁣3⁣
Penn-Plax Undergravel Aquarium Filter for 15-20 (high) Gallon Tanks – Two 11....
Brand New · Penn-Plax
(22)
$20.87
Free shipping
Only 1 left!
3⁣⁣⁣⁣D⁣ ⁣T⁣1⁣ ⁣⁣S⁣6⁣ ⁣⁣⁣⁣W⁣2⁣ ⁣⁣A⁣A⁣ ⁣⁣C⁣⁣⁣⁣
undergravel filteration Bottom circular Bar 33.5"x 9.6" Under Gravel Filter Tube
Brand New
$45.99
Free shipping
4 watching
Z⁣S⁣E⁣ ⁣p⁣o⁣n⁣s⁣o⁣r⁣2⁣2⁣e⁣d⁣ ⁣⁣⁣⁣⁣3⁣⁣⁣⁣5⁣ ⁣Z⁣8⁣⁣
RA Premium Under Gravel Filter - 10 gal
Brand New
(1)
$38.87
Free shipping
I⁣S⁣p⁣J⁣o⁣ ⁣Z⁣n⁣s⁣o⁣r⁣T⁣ ⁣O⁣e⁣X⁣d⁣⁣⁣ ⁣L⁣⁣C⁣⁣ ⁣D⁣⁣⁣
RA Premium Under Gravel Filter - 15/20 gal
Brand New
(1)
$61.86
Free shipping
S⁣p⁣B⁣o⁣L⁣ ⁣H⁣n⁣X⁣s⁣ ⁣o⁣r⁣e⁣d⁣P⁣⁣B⁣⁣ ⁣9⁣S⁣⁣ ⁣K⁣S⁣⁣ ⁣
Lees Original Undergravel Filter 24 Long x 12 Wide (15-20 Gallons)
Brand New
$23.95
or Best Offer
Free shipping
S⁣p⁣o⁣n⁣E⁣C⁣s⁣ ⁣2⁣o⁣r⁣e⁣d⁣9⁣ ⁣⁣4⁣1⁣⁣⁣⁣⁣ ⁣V⁣L⁣⁣ ⁣T⁣
Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 1...
Brand New · Penn-Plax
(16)
$23.23
Free shipping
4 watching
⁣⁣Y⁣2⁣⁣⁣ ⁣⁣A⁣⁣A⁣ ⁣⁣L⁣⁣Y⁣⁣ ⁣⁣⁣⁣⁣⁣V⁣U⁣ ⁣A⁣9⁣
Under-Gravel Aquarium Filter Lee's Original UGF 15/20 Gallon 24"x12"
Brand New
(4)
$21.95
Free shipping
13 watching
⁣⁣⁣K⁣Y⁣⁣⁣ ⁣W⁣W⁣⁣⁣⁣ ⁣⁣⁣⁣⁣D⁣R⁣ ⁣5⁣⁣⁣⁣⁣⁣R⁣
Undergravel Aquarium Filter for 20 Long - 29 Gallon Tanks – Two 14” x 11.1” P...
Brand New · Penn-Plax
(16)
$23.44
Free shipping
J⁣⁣⁣F⁣⁣⁣ ⁣⁣N⁣J⁣⁣⁣ ⁣N⁣M⁣ ⁣⁣S⁣V⁣⁣ ⁣⁣⁣⁣⁣N⁣⁣H⁣
Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25”
Brand New · Penn-Plax
(110)
$31.89
Trending at $35.01
Free shipping
30 sold
⁣⁣O⁣C⁣⁣ ⁣⁣⁣2⁣Y⁣ ⁣0⁣⁣⁣X⁣⁣ ⁣3⁣⁣⁣⁣4⁣⁣⁣ ⁣P⁣⁣M⁣
Lee's Original Under Gravel Aquariums Filter available in 12 different sizes
Brand New
(2)
$15.99 to $109.99
$6.99 shipping
18 sold
⁣⁣⁣L⁣7⁣⁣ ⁣7⁣⁣⁣3⁣⁣ ⁣P⁣⁣⁣T⁣⁣ ⁣⁣Y⁣H⁣⁣⁣⁣⁣ ⁣7⁣
New ListingUndergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – 14” x 11.1” Pla...
Brand New · Penn-Plax
(16)
$24.61
Free shipping
⁣⁣⁣⁣K⁣F⁣⁣⁣ ⁣⁣F⁣D⁣ ⁣4⁣⁣⁣⁣⁣⁣⁣⁣6⁣ ⁣⁣Q⁣S⁣⁣⁣
Top Fin Topfin Under Gravel Filter 10 Gallon Fits 10" x 20" Aquarium New
Brand New · Top Fin
$12.00
or Best Offer
$9.60 shipping
⁣O⁣⁣S⁣ ⁣O⁣O⁣⁣ ⁣4⁣⁣⁣P⁣⁣ ⁣⁣0⁣B⁣ ⁣⁣E⁣4⁣⁣⁣ ⁣⁣⁣G⁣
Penn Plax Clear Free Under Gravel Filter 40 55 Gallon Aquarium Bubbler System
Brand New · Penn-Plax
(110)
$36.99
Free shipping
6 watching
⁣⁣A⁣⁣A⁣⁣ ⁣⁣V⁣X⁣⁣⁣⁣ ⁣I⁣⁣⁣⁣Q⁣ ⁣K⁣G⁣ ⁣⁣L⁣⁣⁣Y⁣
Undergravel Filter Kit Aquarium Fish Tank Under Gravel Tray - Multiple Sizes
Brand New
$24.58 to $34.76
Free shipping
I⁣L⁣ ⁣⁣0⁣⁣S⁣ ⁣⁣⁣U⁣⁣G⁣ ⁣G⁣7⁣ ⁣M⁣G⁣⁣⁣ ⁣⁣⁣⁣⁣B⁣⁣
Under-Gravel Aquarium Filter Lee's Original UGF 13240 40/55 Gallon 48" x 12"
Brand New
(2)
$44.95
Free shipping
⁣⁣⁣X⁣P⁣⁣ ⁣J⁣⁣L⁣⁣⁣ ⁣1⁣⁣⁣⁣V⁣⁣⁣ ⁣⁣3⁣⁣⁣N⁣⁣ ⁣
Penn-Plax - 40-55 Gal. Aquarium Undergravel Filter -4x 11.25 x 11.25" CFU55 *NIP
Brand New · Penn-Plax
(110)
$19.99
or Best Offer
$7.16 shipping
E⁣⁣P⁣⁣ ⁣N⁣D⁣⁣ ⁣⁣⁣H⁣⁣1⁣ ⁣⁣⁣A⁣1⁣ ⁣Y⁣N⁣⁣ ⁣⁣B⁣⁣⁣
GINGER 5.25" Round Under-gravel Filter for 2 Gallon fishbowl, small aquarium
Brand New
$16.19
Free shipping
4⁣⁣5⁣⁣ ⁣⁣⁣Z⁣S⁣⁣ ⁣N⁣1⁣⁣⁣ ⁣⁣⁣⁣6⁣⁣3⁣ ⁣⁣5⁣⁣J⁣ ⁣
Internal AQUATECH Surface Skimmer Aquarium Marine/FRESH Fish Coral Reef Tank
Brand New · AQUA-Tech
$70.38
$15.00 shipping
13 watching
S⁣p⁣o⁣n⁣T⁣B⁣ ⁣s⁣o⁣3⁣r⁣M⁣ ⁣3⁣T⁣ ⁣G⁣8⁣e⁣d⁣ ⁣R⁣I⁣ ⁣⁣⁣⁣⁣
Aquarium Under Gravel Fish Tank Bottom Filtration Plate Filter Grid Divider Tray
Brand New
$2.96 to $68.20
$3.98 shipping
B⁣S⁣p⁣o⁣n⁣M⁣ ⁣s⁣S⁣o⁣r⁣1⁣e⁣d⁣ ⁣⁣⁣⁣⁣J⁣⁣⁣⁣⁣⁣⁣⁣⁣
Lee's 4" Round Under-gravel Filter for 1 Gallon fishbowl, small aquarium
Brand New
$15.23
Free shipping
16 watching
S⁣1⁣p⁣T⁣ ⁣o⁣n⁣F⁣s⁣o⁣0⁣ ⁣r⁣e⁣d⁣⁣P⁣F⁣ ⁣3⁣3⁣⁣ ⁣⁣J⁣8⁣ ⁣A⁣
Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provi
Brand New · Penn-Plax
$23.53
Free shipping
S⁣O⁣p⁣o⁣n⁣s⁣o⁣K⁣ ⁣r⁣6⁣N⁣e⁣ ⁣d⁣Y⁣2⁣⁣⁣ ⁣B⁣⁣1⁣ ⁣⁣⁣Z⁣⁣
PREMIUM UNDER GRAVEL FILTER Penn-Plax Fresh Salt Water Safe 20 - 29 Gallon Tanks
Brand New · Penn-Plax
(16)
$24.44
Free shipping
8 watching
G⁣M⁣⁣ ⁣⁣⁣⁣⁣W⁣P⁣⁣⁣ ⁣⁣⁣8⁣⁣B⁣⁣ ⁣⁣⁣⁣G⁣⁣P⁣⁣⁣
Aquarium Masters Biological Under Gravel Filter Kit MK-3010 Fits STD 10 Gallon
Brand New
$27.99
$11.70 shipping
Q⁣⁣⁣⁣6⁣ ⁣W⁣⁣5⁣ ⁣⁣D⁣8⁣⁣ ⁣⁣O⁣⁣⁣U⁣ ⁣⁣4⁣X⁣⁣ ⁣⁣B⁣
2 Packs Lee's Knockout Plug Uplift Tube Caps Black Replacement Aquarium Snap Cap
Brand New
(2)
$12.99
Free shipping
⁣⁣⁣G⁣W⁣ ⁣⁣W⁣G⁣ ⁣V⁣9⁣ ⁣B⁣⁣4⁣ ⁣J⁣9⁣ ⁣⁣5⁣⁣ ⁣⁣⁣⁣⁣
Lee's Pet Products Round Bowl Undergravel Filter, Large
Brand New
(2)
$14.94
Free shipping
8 watching
⁣⁣⁣⁣⁣T⁣⁣⁣8⁣ ⁣⁣E⁣⁣G⁣⁣⁣ ⁣B⁣H⁣ ⁣⁣⁣9⁣3⁣⁣⁣ ⁣⁣
Crystal Clear Water: Under Gravel Aquarium Filter for Freshwater & Saltwater
Brand New · Unbranded
$36.98
or Best Offer
Free shipping
⁣⁣⁣0⁣⁣⁣⁣1⁣⁣⁣ ⁣⁣⁣⁣⁣⁣H⁣R⁣⁣ ⁣E⁣⁣W⁣⁣⁣ ⁣P⁣H⁣
Under-Gravel Aquarium Filter Lee's Original 10 Gallon 20" x 10" 13210
Brand New
(6)
$19.99
Free shipping
Only 1 left!
R⁣A⁣ ⁣⁣D⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣E⁣⁣⁣ ⁣⁣Z⁣M⁣⁣⁣ ⁣
RA Premium Under Gravel Filter - 40/55 gal
Brand New
(12)
$102.63
Free shipping
S⁣p⁣o⁣C⁣n⁣s⁣o⁣2⁣ ⁣R⁣Q⁣r⁣ ⁣M⁣9⁣ ⁣e⁣d⁣⁣G⁣6⁣⁣ ⁣⁣⁣⁣1⁣B⁣
Bottom Filtration Plate Aquarium Fish Tank Filter System Accessory Under Gravel
Brand New · Unbranded
$5.19 to $45.69
$3.98 shipping
X⁣N⁣S⁣ ⁣0⁣p⁣4⁣o⁣ ⁣n⁣Y⁣P⁣ ⁣s⁣o⁣r⁣L⁣P⁣e⁣d⁣ ⁣⁣7⁣⁣⁣⁣⁣⁣
Top Fin 1 pack Carbon Cartridges UF Series 2-Month supply-
Brand New · Top Fin
(1)
$12.99
or Best Offer
$4.99 shipping
Only 1 left!
T⁣2⁣ ⁣⁣H⁣⁣⁣Q⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣F⁣⁣8⁣⁣ ⁣U⁣⁣⁣I⁣ ⁣
Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...
Brand New · Penn-Plax
(110)
$34.53
Trending at $35.01
Free shipping
⁣⁣⁣Q⁣⁣⁣3⁣ ⁣⁣E⁣⁣P⁣⁣ ⁣⁣C⁣⁣⁣9⁣ ⁣⁣⁣⁣⁣⁣⁣⁣4⁣
All-in-One Filter & Bubbler System for 20-29 Gallon Aquariums – Easy Maintenance
Brand New · Unbranded
$25.98
or Best Offer
Free shipping
B⁣V⁣ ⁣O⁣5⁣⁣⁣ ⁣⁣⁣⁣C⁣⁣2⁣⁣ ⁣⁣K⁣⁣D⁣ ⁣⁣X⁣⁣⁣⁣I⁣ ⁣
Lee's Pet Products Uplift Tubes Knockout Plugs, 4 Pack
Brand New
(2)
$9.42
or Best Offer
Free shipping
⁣1⁣⁣L⁣⁣⁣ ⁣H⁣⁣⁣C⁣⁣⁣ ⁣⁣⁣⁣V⁣K⁣ ⁣⁣⁣⁣⁣⁣⁣B⁣⁣
Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 29 Gallon Blue
Brand New · Penn-Plax
(16)
$24.52
Free shipping
3 watching
⁣D⁣⁣Z⁣⁣⁣ ⁣N⁣K⁣⁣ ⁣⁣⁣⁣Y⁣M⁣ ⁣2⁣⁣6⁣⁣ ⁣⁣⁣⁣⁣9⁣⁣
Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – 14” x 11.1” Pla...
Brand New · Penn-Plax
(16)
$24.61
Free shipping
J⁣⁣⁣M⁣⁣⁣⁣⁣⁣ ⁣⁣9⁣B⁣⁣⁣⁣⁣ ⁣C⁣⁣Y⁣⁣ ⁣⁣1⁣B⁣⁣⁣
Penn Plax Undergravel Aquarium Filter for 40/55 Gallon Tanks 4 Filter System
Brand New · Penn-Plax
$19.99
$10.65 shipping
⁣Z⁣V⁣ ⁣R⁣M⁣ ⁣Y⁣⁣3⁣ ⁣⁣⁣V⁣⁣⁣Q⁣⁣ ⁣⁣5⁣N⁣⁣⁣ ⁣⁣N⁣⁣
Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...
Brand New · Penn-Plax
(110)
$36.22
Free shipping
Only 1 left!
4⁣⁣⁣6⁣ ⁣⁣⁣L⁣G⁣ ⁣⁣S⁣H⁣ ⁣O⁣Z⁣⁣⁣ ⁣⁣⁣S⁣J⁣ ⁣U⁣⁣⁣⁣
New Lee’s Aquarium Fish Tank Under Gravel Filter 10 Gallon Fresh Or Salt Water
Brand New
(1)
$29.99
$10.41 shipping
⁣X⁣X⁣⁣⁣ ⁣⁣⁣⁣O⁣⁣N⁣⁣⁣⁣ ⁣Y⁣⁣⁣⁣Q⁣⁣⁣ ⁣U⁣⁣⁣J⁣
Penn Plax Premium Under Gravel Filter System - for 40-55 Gallon Fish Tanks &
Brand New · Penn-Plax
(110)
$31.79
Trending at $35.01
Free shipping
17 sold
⁣⁣⁣3⁣F⁣ ⁣R⁣D⁣⁣ ⁣7⁣L⁣ ⁣⁣L⁣⁣⁣⁣2⁣ ⁣H⁣⁣⁣B⁣⁣ ⁣⁣⁣
Aquarium Undergravel Filter 55 Gallon - Fish Tank Under Gravel Filteration Tube
Brand New
(1)
$46.99
Free shipping
Only 2 left
6⁣⁣I⁣ ⁣⁣⁣⁣W⁣⁣G⁣⁣ ⁣⁣⁣U⁣L⁣ ⁣K⁣⁣⁣⁣⁣4⁣⁣ ⁣⁣F⁣⁣
Undergravel Aquarium Filter 20/15 Gallons 2 Filter Plate System 23”x11 1/2” New
Brand New · Penn-Plax
(22)
$15.87
$10.00 shipping
⁣⁣6⁣⁣6⁣ ⁣⁣3⁣3⁣⁣⁣ ⁣⁣⁣E⁣3⁣⁣⁣ ⁣⁣⁣M⁣5⁣⁣⁣⁣⁣ ⁣
Fishbowl Under-Gravel Filter Kit For Drum / Round Bowls 4 in or Larger Opening
Brand New · Penn-Plax
$23.74
Was: $24.99was - US $24.99
or Best Offer
$9.88 shipping
V⁣⁣⁣P⁣⁣⁣ ⁣⁣Z⁣X⁣ ⁣⁣I⁣⁣⁣H⁣ ⁣⁣N⁣J⁣ ⁣6⁣9⁣⁣⁣ ⁣⁣⁣
Under-Gravel Aquarium Filter Lee's Original UGF 30 Gallon Long 36" x 12"
Brand New
(1)
$30.97
$8.60 shipping
5 watching
⁣⁣M⁣A⁣ ⁣A⁣Q⁣ ⁣⁣P⁣M⁣ ⁣⁣⁣⁣9⁣8⁣ ⁣S⁣⁣⁣J⁣ ⁣⁣H⁣⁣⁣⁣
Under-Gravel Aquarium Filter Lee's Original UGF 20L/29/37 Gallon 30" x 12" 13229
Brand New
$25.97
$8.35 shipping
5 watching
⁣⁣X⁣⁣⁣⁣⁣6⁣⁣⁣⁣⁣ ⁣⁣7⁣1⁣ ⁣⁣⁣⁣7⁣Z⁣ ⁣⁣⁣⁣⁣⁣
Lee's Aquarium & Pet Products Under Gravel Filter 10 Gal. New In Box
Brand New
(6)
$15.00
or Best Offer
$9.31 shipping
⁣F⁣9⁣⁣ ⁣P⁣8⁣⁣ ⁣R⁣R⁣⁣ ⁣H⁣⁣8⁣⁣⁣ ⁣⁣F⁣Q⁣⁣⁣⁣ ⁣J⁣⁣
Clear-Free Premium Under Gravel Aquarium Filter (UGF) – Freshwater and Saltwa...
Brand New · Penn-Plax
(16)
$28.59
Free shipping
⁣K⁣Q⁣ ⁣⁣⁣⁣M⁣K⁣ ⁣S⁣E⁣⁣⁣ ⁣Z⁣L⁣ ⁣J⁣T⁣ ⁣Q⁣⁣⁣⁣ ⁣⁣⁣
undergravel aquarium filter 40-55 gallon tanks four 11. 25 x 11.25 plates system
Brand New · Penn-Plax
(110)
$34.33
Trending at $35.01
Free shipping
9⁣⁣⁣⁣⁣⁣B⁣ ⁣⁣⁣3⁣4⁣⁣ ⁣T⁣F⁣⁣⁣ ⁣8⁣J⁣ ⁣⁣⁣O⁣⁣⁣⁣
20% SALE AQUATECH Surface Skimmer Aquarium Marine/FRESH Coral Tank FREE SHIPPING
Brand New · AQUA-Tech
$64.26
Free shipping
6 watching
9⁣P⁣ ⁣D⁣S⁣p⁣o⁣n⁣s⁣1⁣o⁣r⁣e⁣ ⁣d⁣G⁣⁣H⁣ ⁣⁣⁣⁣⁣⁣V⁣3⁣ ⁣I⁣
Efficient Under Gravel Filter for 40-55 Gallons - Filters and Aerates Tanks
Brand New · Unbranded
$53.99
Free shipping
0⁣N⁣S⁣ ⁣p⁣5⁣o⁣n⁣N⁣s⁣ ⁣o⁣L⁣W⁣r⁣e⁣d⁣ ⁣Z⁣8⁣⁣⁣⁣⁣ ⁣W⁣V⁣ ⁣

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Lee's 40/55 Original Undergravel Filter 12in by 48in
(2)
$44.95 New
Penn-Plax Premium Under Gravel Filter System - Blue (CFU55)
(110)
$26.99 New
Lees 15/20 Original Undergravel Filter 12inch by 24inch
(4)
$21.95 New
Lees Original Undergravel Filter 20" Long " Wide (10 Gallons) 13210
(6)
$19.99 New
Lees Undergravel Knockout Plugs 4 Pack 13030
(2)
$12.99 New

Internal Aquarium Undergravel Filters

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155 Results

RA Premium Under Gravel Filter - 70/90 gal

MT Aquatics Under Gravel Filter UGF Shrimp Breeding | Fish Tank Filter DIY KITS

2 pcs Rigid Tubing 3/16" x 18" Replacement for Lee's Aquarium Undergravel Filter

2 pcs Rigid Tubing 1" x 18" Replacement for Lee's Aquarium Undergravel Filters

2 Sets Under Gravel Filter Box UGF UGFB, for Shrimp Tank.

Penn Plax Undergravel Filter 20L/29 Gal (72.4 cm x 29.2 cm)

UGF Box Set | Under Gravel Filter Box for Shrimp and Fish Tank | Aquarium filter

Undergravel Filter Box (UGF) for Aquarium Fish Tank Shrimp Filtration

20 Gal Undergravel Aquarium Filter 2 Plate System Aquarium Outfitters

Under Gravel Filter Box UGF UGFB, for Shrimp Tank.

Lee's Pet Products UGF Bagged Undergravel Economy Filter 5.5 gallons (7.5"x15")

Penn-Plax Undergravel Aquarium Filter for 15-20 (high) Gallon Tanks – Two 11....

undergravel filteration Bottom circular Bar 33.5"x 9.6" Under Gravel Filter Tube

RA Premium Under Gravel Filter - 10 gal

RA Premium Under Gravel Filter - 15/20 gal

Lees Original Undergravel Filter 24 Long x 12 Wide (15-20 Gallons)

Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 1...

Under-Gravel Aquarium Filter Lee's Original UGF 15/20 Gallon 24"x12"

Undergravel Aquarium Filter for 20 Long - 29 Gallon Tanks – Two 14” x 11.1” P...

Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25”

Lee's Original Under Gravel Aquariums Filter available in 12 different sizes

New ListingUndergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – 14” x 11.1” Pla...

Top Fin Topfin Under Gravel Filter 10 Gallon Fits 10" x 20" Aquarium New

Penn Plax Clear Free Under Gravel Filter 40 55 Gallon Aquarium Bubbler System

Undergravel Filter Kit Aquarium Fish Tank Under Gravel Tray - Multiple Sizes

Under-Gravel Aquarium Filter Lee's Original UGF 13240 40/55 Gallon 48" x 12"

Penn-Plax - 40-55 Gal. Aquarium Undergravel Filter -4x 11.25 x 11.25" CFU55 *NIP

GINGER 5.25" Round Under-gravel Filter for 2 Gallon fishbowl, small aquarium

Internal AQUATECH Surface Skimmer Aquarium Marine/FRESH Fish Coral Reef Tank

Aquarium Under Gravel Fish Tank Bottom Filtration Plate Filter Grid Divider Tray

Lee's 4" Round Under-gravel Filter for 1 Gallon fishbowl, small aquarium

Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provi

PREMIUM UNDER GRAVEL FILTER Penn-Plax Fresh Salt Water Safe 20 - 29 Gallon Tanks

Aquarium Masters Biological Under Gravel Filter Kit MK-3010 Fits STD 10 Gallon

2 Packs Lee's Knockout Plug Uplift Tube Caps Black Replacement Aquarium Snap Cap

Lee's Pet Products Round Bowl Undergravel Filter, Large

Crystal Clear Water: Under Gravel Aquarium Filter for Freshwater & Saltwater

Under-Gravel Aquarium Filter Lee's Original 10 Gallon 20" x 10" 13210

RA Premium Under Gravel Filter - 40/55 gal

Bottom Filtration Plate Aquarium Fish Tank Filter System Accessory Under Gravel

Top Fin 1 pack Carbon Cartridges UF Series 2-Month supply-

Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...

All-in-One Filter & Bubbler System for 20-29 Gallon Aquariums – Easy Maintenance

Lee's Pet Products Uplift Tubes Knockout Plugs, 4 Pack

Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 29 Gallon Blue

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