Whisper 4i Internal Power Filter trex skull Stylish honeycomb wrap conceals rear

Stylish honeycomb wrap conceals rear filtration compartment

It is only there to show where the boot from the hose attaches

and thus a critical pollutant reservoir is quickly rendered harmless

and biological factors

Advanced mounting bracket securely attaches to glass and provides three window positions

Whisper 4i Internal Power Filter trex skull Stylish honeycomb wrap conceals rearThe Tetra Whisper internal aquarium filter is the ultimate in quiet, convenient 3 stage filtration. The dual sided mesh of the Bio Bag catches debris and fish waste while the activated carbon absorbs odors and discoloration. Biological filtration is provided by the Bio Scrubber. Bio Scrubber's anti clog design provides complete biological filtration with the convenience of less maintenance. Because the Bio Scrubber has a solid back, water is forced to