Installing thermosyphon restrictor on expobar office pulser - Page 3

[HeppCatt]

I'm a fairly new Expobar Lever owner and definitely want one of these restrictors! So what is the contact info for the supplier? Has anyone found any generic Home Depot/Lowes type washers that work for this? Would really appreciate help here, I think the Water Department is going to fine me for wasting H20 with all these cooling flushes!