Hooked up to my AquaTop AP-50 Air Pump. The tubing bends nicely, is smooth, and does the job really well. I'm glad I got the longer tubing (20-foot).
Gets the job done.
Good product and service.
I use this to attach my air pumps and air stones to my sponge filters. Never an issue from this company.
Set up with sponge filter. Works great 8 months later. Quick delivery.