$6.99 Shipping, Free on orders over $59. Exclusions apply. See Details.
Home » Brands » All Brands » Penn-Plax » Penn-Plax Filt-A-Carb Carbon Undergravel Cartridge 2pk. #FC-2
Penn-Plax Filt-A-Carb Carbon Undergravel Cartridge 2pk. #FC-2

Penn-Plax Filt-A-Carb Carbon Undergravel Cartridge 2pk. #FC-2

Item #: 030172399114
Reg: $4.59
Sale: $3.80
You Save: $0.79 (17%)
  • Description
  • Reviews
Penn-Plax Filt-A-Carb Carbon Undergravel Filter Cartridge are designed to fit Penn-Plax "Multi-Pore" and Undergravel "e" filters. Top quality activated carbon removes harmful gases and odors, and clears up unsightly discoloration. Contains 2 replacement cartridges.


  • Specifically designed to fit Penn-Plax "Multi-Pore", Undergravel “e” Filters, and Premium CFU Undergravel Filters
  • Cartridges should be replaced every 2-4 weeks
  • Keep your tank looking crystal clear
  • Quick, easy, disposable
Review Summary
26 Reviews
92% (24)
8% (2)
0% (0)
0% (0)
0% (0)
100% Recommend this product (26 of 26 responses)
By Toni P.
Penn play filt a carb
December 15, 2023
Great price, availability, and fast shipping.
By Matt
Great business!
December 29, 2021
Hi! I found exactly what I needed! The items and quantities were in stock, the order process was easy, and the turn around time to shipment was fast.

Items received properly packaged to ensure no damages. Seriously, well done!

My new go to business for pet needs.

By Michael T.
Under gravel set up
May 9, 2021
Had just what I needed. There getting harder to find. Good price. Would recommend buying several at a time.
By Allen
These have been an awesome addition for my tanks
January 15, 2021
Since the small city I live in didn't have these replacement cartridges, they sell the entire system, but with Petguys, it wasn't hard to find what I needed and they shipped them pretty fast too. Glad I found them.
By Anonymous
Penn-place gilt - A - Carbon undergravel Cartridge
September 14, 2020
Great product, can’ t find them in Colorado, maybe A few but not enough! Thanks! Don’t forget us!
By Tim
Carbon filter cartridges for undergravel filter
June 14, 2020
Petguys service and fast shipping make me give this a 5-star rating. Pricing was excellent and shipping was super fast! I hope they keep these cartridge filters in stock.
By Jennifer
Undergravel filters
July 18, 2019
Good product. Helps keep my tank clean longer.
By Lou
Good product and fast shipping
July 7, 2019
Good product and fast shipping. Product arrived faster than I anticipated.
By Art B.
FC-2 Filt-A-Carb
June 27, 2019
Best price and speedy shipping! I highly recommend Petguys!
  • Best price and fast shipping!
  • None
By Carol K.
Great Price, Great Product, Quick Deliver
March 15, 2019
Underground filter parts are not easily replaced. I was very happy to have found PET GUYS. The parts I needed are working well . . . Thanks so Much. You are a Lifesaver!
By Sara
Fish tank filters
April 22, 2018
GREAT product! This was the EXACT replacement filter We we’re looking for. We could NOT find them in any pet store so we checked online and went with these guys. Our order came just as we expected in a timely manner and we are very satisfied and will definitely reorder when we are all out.
By Camille
Penn-Plax Filt-A-Carb Carbon Undergravel Cartridge 2pk
February 26, 2018
Great Value. Order arrived within a few days. They work great. Very, very pleased. Will purchase again in the future.
By Dennis
December 13, 2017
Perfect fit
By Stella m.
Underground filters
July 5, 2017
Very satisfied fast arrival will definitely order again as well as other products.
  • Fast delivery good product .
February 2, 2017
Perfect. Does what they are supposed to do. Water clear as crystal. I also use a whisper filter on the back of aquarium and turn off to feed fish. If I forget to turn outside filter back on then the Penn-Plax undergravel filter keeps water sooooo clear. These cartridges really do the job well. I change these cartridges once every month.
  • Read above comment
  • NONE!