Marineland B Rite Size Cartridge - (Fits Penguin 110B, 125B, 150B) Aquarium Filter Cartridges at Linens 'n Things

On February 27, 2013:
I have only found one pet store that carries this style of filters and they are over 3 times the cost of the filters here. I always have one box extra on hand and the price is so cheap I have to keep my self from ordering too many!

On December 27, 2012:
I purchased 2 packs of fish tank filters that my pet store sells for 19$ got them off site for 7.99 big/huge savings thanks guys, no knockoffs here!!!!

On September 23, 2012:
I have been purchasing these cartridges in the 6 pack form from Pet Mountain for about a year now. The cartridges perform well, can be rinsed and re-used a few times before replacing. Pet Mountain's price on these cartridges are about 1/3 of what that are locally (even with shipping!). 

On October 30, 2011:
Good filter cartridges at a great price from Pet Mountain.

On June 24, 2011:
My husband loved it!

On September 4, 2010:
Filter works as promised: keeps water crystal clear for weeks in our aquarium. Highly recommend it.

On April 16, 2010:
I ordered these filter cartridges and received them without any problems. Excellent company to do business with.

On December 3, 2009:
A simple and straightforward order for filter cartridges. I have ordered from Pet Mountain and as previously the order was correct, neatly packaged and received sooner than expected. All I ask for in a simple order is simple service, to receive what was requested, expedient shipping and clear communication in the event of a problem. Pet Mountain has easily fulfilled my expectations and I will order from them in the future. S.