Undergravel Filters

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Undergravel Filters

Penn-Plax Undertow Undergravel Filters
The best traditional undergravel filter on the market. Convenient and trouble free, comes with illustrated easy-to-follow set-up instructions. For fresh and salt water. Every undertow comes with one FREE Filt-A-Carb cartridge for each lift tube. In sizes to fit all standard aquariums.
	10 gallon size measures 10"x20" 15, 20H gallon size measures 12"x24" 30, 35, 45 gallon size measures 12"x36" 40,50,65 gallon size measures 18"x36" 55 gallon size measures 13"x48" 70,90,110 gallon size measures 18"x48" 100,125,150 gallon size measures 18"x72"
UNDERTOW UGF 10GAL Our Price:$22.99 Qty:
UNDERTOW UGF 15/20HGAL Our Price:$31.99 Qty:
UNDERTOW UGF 30/35/45GAL Our Price:$36.99 Qty:
UNDERTOW UGF 55GAL Our Price:$39.99 Qty:

Penn-Plax Clear-Free UG Filters

Premium undergravel filter for crystal clear water. Jumbo 1" diameter adjustable lift tubes. Convenient, trouble free maintenance. Easy setup.

5-1/2 gallon size measures 8"X16"
10 gallon size measures 10"x20"
15, 20H gallon size measures 12"x24"
20L, 29, 37 gallon size measures 12"x30"
30, 35, 45 gallon size measures 12"x36"
55 gallon size measures 13"x48"

CLEAR-FREE UGF 5-1/2 GAL                                      Our Price:$7.99    Qty:

CLEAR-FREE UGF 10 GAL                                           Our Price:$10.99      Qty:

CLEAR-FREE UGF 15/20H GAL                                  Our Price:$12.99    Qty:

CLEAR-FREE UGF 20L/29/37 GAL                            Our Price:$14.99    Qty:

CLEAR-FREE UGF 30/35/45 GAL                               Our Price:$16.99   Qty:

CLEAR-FREE UGF 55 GAL                                           Our Price:$21.99   Qty:

Penn-Plax Filter Cartridges

Ammonia-X Cartridges are Ammonia removing undergravel filter cartridges. Life insurance for your fish, quick, easy, and disposable. For best results, your Ammonia-X cartridges should be replaced every 2-4 weeks. Model AX-2 shown.

Filt-A-Carb Cartridges are disposable replacement cartridges of quality activated carbon for UG filters. 2 Cartridges per package. For best results, your Filt-A-Carb cartridges should be replaced every 2-4 weeks. Removes harmful gases and odors, clears up 'yellowing' water. Model FC-4 shown.

Model AX-2 fits Penn-Plax 'UE' undergravel filters.
Model AX-3 fits any 1" diameter undergravel filter lift tube.
Model AX-4 fits Penn-Plax 'Undertow' and Perfecto 'Perfect-a-Flow' undergravel filters.
Model FC-2 fits Penn-Plax 'UE' undergravel filters.
Model FC-3 fits any 1" diameter undergravel filter lift tube.
Model FC-4 fits Penn-Plax 'Undertow' and Perfecto 'Perfect-a-Flow' undergravel filters.

AMMONIA-X CARTRIDGE AX-2                            Our Price:$3.99     Qty:

AMMONIA-X CARTRIDGE AX-3                            Our Price:$4.99     Qty:

AMMONIA-X CARTRIDGE AX-4                            Our Price:$3.99     Qty:

FILT-A-CARB CARTRIDGE FC-2                           Our Price:$3.99     Qty:

FILT-A-CARB CARTRIDGE FC-3                           Our Price:$4.99     Qty:

FILT-A-CARB CARTRIDGE FC-4                             Our Price:$3.99     Qty:

Filter Upgrade Kit

Features two elbows with Fishguard, 2 gravel guards, and 2 replacement FC-4 cartridges. Fits any 1" diameter undergravel filter lift tube.

FILTER UPGRADE KIT Our Price:$6.99 Qty:

Lift Tube Caps

Those hard-to-find little round white caps to seal off unused openings on your Undertow undergravel filter. Fits most other brands too!

LIFT TUBE CAPS Our Price:$.49 Qty: