Attests Fitting

[welshy_32ZILA]

Hi,

I'm looking to add a pressure sensor to the Attessa system where it is plumbed into the rear of the assembly similar to the pic. Anyone either know where I could source one from or what the fitting size is?

Ideally I'll set the sensor up remote mounted or the os88 will rattle the shit out of the sensor and break it pretty quick. 

[sneakey pete]

That one looks like a custom Jobbie, best bet is probably to take the end cap assembly down to a machine shop and get them to make a similar space/W provision like pictured there