Cascade 300 GPH Hang On Filter Replacement Media, 3 Pack - Dual-Sided Aquarium Filter Cartridge with Activated Carbon & Poly-Fiber Floss for CPF5 -Fresh & Saltwater - Blue & Black, ‎10x3x7in

This filter takes your tank from floaters to clear water in a very short time. Works super fast and keeps tank clean! Can’t go wrong! Filter replacements are not cheap but they work great!

Great for a Cascade 300.

Been buying this brand for many years. These filters are on my Subscribe and Save list. A “must have” for PennPlax filters.

Pros: These filters arrived fast (Next Day) with standard shipping. I paid $8 for 3 large filters, so the deal was great. They were exactly what I ordered and arrived in perfect shape.Cons: Standard shipping cost me another $8 on the price. This doubled the price for the filters.Overall: Although the shipping was expensive, the overall price wasn't bad and I got these filters fast. I will buy my future replacement filters from this seller (Petsolutions).

Works good. Cleaned my nasty tank up fast after putting it in.

Very happy with this filter. Very quiet highly recommend this filter.

Its just a sponge. idk what you want from me.

Cheap made and don't last long. Very hard to clean for reuse.

just what i needed

I am very pleased with the delivery 😀 always here as they say . Thank you

bought this along with the foam pad, but its expensive for what they are, recommend shopping around but if this is the best the price then this is what to buy

They work amazingly well I just wish they kept them in black looks way better to me I'd rather pay them immblaxk because it matches the filter better

Will be buying more of these. Love how the price is so good for a pack of 3.