NEW Thermal Transfer Products TTP Heat Exchange
Tube Shell 350F # SB-704-C4-S-Z
for more info see the spec sheet. I got this from factory overstock sale
www.efaidnbmnnnibpcajpcglclefindmkaj/https://www.thermaltransfer.com/wp-content/uploads/2023/03/TTP-B-SB-Series_R15.pdf
Will ship international.