National Radiators introduced the:
Single Row CT Core
- 2 Row x 10mm tube pitch CT cores
- 3 Row x 12mm tube pitch CT cores
- 4 Row x 12mm tube pitch CT cores
Followed a few years later by:
- 3 Row x 10mm tube pitch CT cores
- 4 Row x 100 tube pitch CT cores
- Which took the core range and the core efficiency to the next level.
