Product: Tetra Whisper Air Pump, For aquariums, Quiet, Powerful Airflow
Brand: Tetra
POWERFUL Tetra Whisper Air Pump provides dependable airflow to your aquarium
QUIET Patented dome shape suspended motor and sound-dampening chambers for quiet operation
ELIMINATES VIBRATION Designed with a wide footprint and rubber feet
AVAILABLE SIZES Select the proper size for your tank – 10 20 and 40 gallon pumps have single air outlets 60 and 100 gallon pumps feature dual outlets

Search query: tetra 20 gallon tank
Relevance: Substitute