Whisper 20 Air Pump ex filter cartridge large 4 pack This model filters 100 gph

This model filters 100 gph and is rated for tanks up to 20 gallons

Part # CCF117

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

For easy installation the diffusers have been mounted on suction cups

Whisper 20 Air Pump ex filter cartridge large 4 pack This model filters 100 gphMinimal noise, maximum air flow. The Whisper Air Pumps dome shape actually flattens sound wave frequencies. In addition, each model features sound dampening chambers designed specifically for that model. And the air pump's rubber feet and suspended motor prevent sound waves from reflecting off surfaces such as tables and shelves. Single outlet good for tanks up to 20 gallons