material:  

• AISI 304, 1.4301

surface:  

• outside and inside: 2B-IIIC

upper bottom:

• with manhole lid round,
• diameter 450 mm, snap lock with filler neck central DN 50

tank body:  

• with status display and scale bar

lower bottom:

• with conical bottom
• with outlet central with outlet pipe with butterfly valve DN 50, on 3 feet, very stable execution