Home » Foam Aeration Tubes » Foam Aeration Tube Foam Aeration Tube Designed for quick and easy attachment to Protek’s handline nozzles Enhanced foam quality and stability Compatible with many foam concentrates Expansion rates of up to 12:1 Categories: Foam Aeration Tubes, Protek Tags: Fire Fighting Equipment, Foam Aeration Tubes, Protek Related products Marine Foam Expansion Tube Fire Extinguisher 10 TALL ABC Hydrant Box Type – C Fire Extinguisher – 305 ABC