Penn-Plax Internal 20 gal. Tank Capacity Aquarium Filters
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58 Results
CASCADE 100 POWER FILTER cUL BIO-FALL
$24.99or Best Offer$12.45 shippingCASCADE 100 POWER FILTER cUL BIO-FALL
$40.99Free shipping41 sold2-PACK REP72 PennPlax Reptology 70 In-Tank Filter Replacement Carbon Cartridges
$15.83or Best Offer$5.35 shippingPenn-Plax Undergravel Aquarium Filter for 15-20 (high) Gallon Tanks – Two 11.2”
$14.82Free shippingPenn Plax Cascade 100/CPF2 Hang on Power Filter 100 GPH Part# CPF2
$24.51$6.72 shippingOnly 1 left!Filters ~ Fish Tank ~ 2X Units ~ Penn-Plax ~ Betta World ~ 1505-SR ~ USA ~ !🆕!
$12.99or Best Offer$4.99 shippingPenn Plax Cascade 400 Bio-Sponge
$6.09 to $32.97$4.95 shippingPenn-Plax Clear-Free Premium Under Gravel Aquarium Filter (UGF) – Freshwater New
$7.420 bids$12.45 shippingEnding Saturday at 10:24AM PDT13h 27m2 count Penn-Plax Cascade 300 Internal Filter CIF1 Replacement Bio-Sponges
$10.00or Best OfferFree shipping2 Penn-Plax Replacement Bio-Sponge Fits Cascade 300 Internal Filter CIF1 New!
$12.95$4.64 shippingCASCADE 400 INTERNAL 110gph FILTER (OPEN Box)
$19.00$5.40 shipping(2) Cascade 2-pack Filter Cartridges for Cascade 300 - Penn Plax *NEW*
$9.59or Best Offer$4.95 shippingPremium Aquarium Undergravel Filter 20 Gallon Penn Plax Filters 10 Fish 55
$22.95Free shipping45 soldCASCADE 400 BIO-SPONGE 1pk REPLACEMENT
$15.97Free shippingCASCADE 300 BIO-SPONGE 1pk REPLACEMENT
$13.97Free shippingCASCADE 400 INTERNAL 110gph FILTER (OPEN Box)
$9.00Was: $18.00or Best Offer$11.60 shippingPenn Plax Cascade Internal Filter for Aquariums
$26.21 to $57.46$4.95 shippingCLEAR FREE PREMIUM UG FILTER 20H/15g
$25.97Free shippingPenn-Plax Cascade 300 Filter Replacement Bio-Sponge (1 Sponge) – Provides
$10.69Free shippingPenn-Plax Cascade Internal Aquarium Fish Tank Filter
$21.99 to $49.99$6.99 shippingPenn-Plax Cascade 400 Fully Submersible Internal Filter 20 Gallon Aquarium
$29.99or Best Offer$13.20 shippingREP71 Penn Plax Reptology 70 In-Tank Filter Pack of 2 Replacement Sponges
$12.99Free shipping2-PACK REP72 PennPlax Reptology 70 In-Tank Filter Replacement Carbon Cartridges
$22.99Free shippingOnly 1 left!Penn Plax Cascade Internal Filter: Superior Aquarium Filtration & Aeration
$43.95 to $71.95$5.00 shipping