They are holding strong. Tubing doesn't slip off.
I think these work better than the "Y" version I used.
Doing the job well.
I'm using this slitter on my 40 gallons tall hexagon tank with a tetra whisper aquarium air pump for 40 gallons. I have not noticed any issues, i.e. air leaks, pressure problems, etc.
Works as designed.
$4.99 Flat Rate