Penn-Plax Universal Filt-A-Carb Disposable Carbon Filter Cartridge fits most undergravel filters. Use for crystal clear water with convenient trouble-free maintenance. Top quality activated carbon removes harmful gases and odors, and clears up unsightly discoloration.
Couldn't find these anywhere local so had to order online, found petguys.com and was happy with product, price and delivery time.
By Burt C.
Carbon filter cartridge
March 4, 2021
Just what I needed.
June 8, 2020
They shipped my Penn-Plax universal disposable carbon filters for my under gravel filtration system right away. Really like these filters. Just wish they made them refillable rather than throw away to help with carbon footprint.
Just what I needed
August 18, 2019
Perfect for my old under gravel setup. I was so glad to find them. Prompt delivery. Thank you!
Penn-Plax Universal filters
October 21, 2017
My order was perfect and arrived well before it was due. Will definitely do business with Pet Guys in the future.
Excellent service and product.
September 7, 2017
I actually received this item before it said I would. I have dealt with Pet Guys before and have always been satisfied
September 11, 2016
Good replace cartridge works very good. They don't sale them in the stores here any more.