La San Marco 85 Model One Group Touch Pad aurelia-parts/aurelia go by the group design

go by the group design (AL67)

including the standard (non-pod-adaptable) diffuser plate

so this isn't a piece you can substitute with straight stock tubing

make sure you're reading the correct scale for boiler vs

La San Marco 85 Model One Group Touch Pad aurelia-parts/aurelia go by the group designTouch Pad for La San Marco 85 Series (One Group Left Side) For single group machines, as well as the left side touchpad on two, three, and four group units, in the 85 16M and new 85 "E" series. COMPATIBILITY Fits: La San Marco 85 16M and new 85 "E" series, single group machines, or the left side position on multi group units INSTALLATION This is an electrical touchpad assembly, so we recommend installation by a qualified technician. This part ships as