Sunsun HW-304B White Blue Pad HW-304 Canister White and Coarse Filter Pad

This filter worked well with my canister filter. Easy to install and clean. Fit well. I would recommend these filter pads.

These pads are well cut and fit my SunSun perfectly. Sure, I could buy a roll of filter fabric and cut my own, because, you know, I like to work with scissors. Beats watching the game. For the price I would buy these every time versus making my own. Maybe your time isn't worth anything. Balance out your purchase with Replacement Coarse Filter Pad for Sunsun Super Grech Perfect HW-304, Set of 3 , as ideally you want more course than fine filters. I place a layer of two course filters at the very bottom, topped with a fine filter. Do not place a fine filter at the top (ie very top, just under the motor housing) of your stack! A filter in that location will certainly keep the particles from entering the aquarium, but a the expense of trapping the particles in the rest of your media (biolgical, carbon etc).

I accidentally ordered the wrong size (thought it was for the HW302 somehow), but with a little trimming they fit fine in my canister filter. Just be sure to double check what model your filter is before you order.

Really great price and does the job

fit is good, exactly what I needed. I should have bought the multi pack for a better value. I will next time.

These extra filter Layers have allowed me to greatly improve the efficiency of my canister aquarium filter. I have my bottom layer filled with the course filters, then my biological media, and then a fine filter layer with a bag of activated carbon.

Works well, I normally use another brand and cut them to fit.. but under time constraints of having a filter down these work just fine, I run 2 sun sun 304B on a 75 gallon cichlid tank

nice,, not enough course filters