Comparison : Item # IS1.1-2.75-6.25, Thermax2 Heat Exchangers
Item # IS2.5-2.75-10.25, Thermax2 Heat Exchangers
Item # IS3.8-2.75-14.25, Thermax2 Heat Exchangers
Item # IS3.8-3.75-10.75, Thermax2 Heat Exchangers
Item # IS5.8-3.75-15.5, Thermax2 Heat Exchangers