It is adjustable!!!!!1

Max pressure is 3.2bar, adjustable

Vacuum is -0.1bar,vacuum can not be adjustable

100% Stainless Steel SS304

1 1/2" TriClamp fitting

All Springs SS304

1 yr warranty on defects in material and workmanship

30 days on seals, all valves require periodic maintence

For Protection of tanks against Over-Pressure or Vacuum. Requirement for most Tanks to be covered by Warranty.