Penn-PlaxStandard Airline Tubing for Aquariums – Clear and Flexible – Resists Kinking – Safe for Freshwater and Saltwater Fish Tanks – 8 Feet

PENN-PLAX Standard Airline Tubing for Aquariums – Clear and Flexible – Resists Kinking – Safe for Freshwater and Saltwater Fish Tanks – 8 Feet

Tetra Whisper Easy to Use Air Pump for Aquariums (Non-UL)

Pawfly Aquarium Check Valves Plastic One Way Non-Return Check Valve for Fish Tank