• i BPX – Brazed Plate Heat Exchanger https://unitedstates.xylemappliedwater.com/brands/bell-gossett/heat-exchangers/plate-heat-exchangers/brazed-plate-heat-exchanger/

• GPX – Gasketed Plate Heat Exchanger https://unitedstates.xylemappliedwater.com/brands/bell-gossett/heat-exchangers/plate-heat-exchangers/gpx-plate-and-frame-heat-exchangers/

• Both GPX and BPX if this works better – https://unitedstates.xylemappliedwater.com/brands/bell-gossett/heat-exchangers/plate-heat-exchangers/

• SU HEAT EXCHNAGER https://unitedstates.xylemappliedwater.com/brands/bell-gossett/heat-exchangers/u-tube-heat-exchangers/u-tube-design/