Emperor Cartridge - 4 pk.

Most cheaper than any pet store. In local store in NYC that cost $20. Look that price here. I receive fast and it's great Cartridge specially for Marine Thank.

These are so convenient to use. I always order from you because of the quick delivery and consistent quality of anything I have ever ordered.

Thank you.

great this is all i use for my tanks

My fish seem happier when I clean the tanks. Customer Service recommended this filter to me in 1994 and it has been running continuously since then. the cartridges are the same as they were back then. My tanks are always clear.

Great product useing for year and the price wow stops me from going to Pet Smar

I have a large aquarium and using these cartridges help in maintaining a exceptional water quality for the fish and keeps the water clear without having to add more chemicals to the water and stressing the fish out.

These cartidges help keep the water clear and the price is awesome! I don't shop anywhere else.

great experience shipped when promised

Have Been using these fliter cartridges for years. They work great, and the service and price was Great.

Have been using these for years,great product. Plus Shipping was quick , and the price was great.

they work just fine