| Material | : | Stainless Steel |
| Suitable For Use With | : | RGS121HFAA0AAAA, RGS121HFBA0AAAA, RGS121HFAB0AAAA and RGS121HFBB0AAAA Packaged Gas/Electric Units |
HEIL® Heat Exchanger, Stainless Steel, For Use With: RGS121HFAA0AAAA, RGS121HFBA0AAAA, RGS121HFAB0AAAA and RGS121HFBB0AAAA Packaged Gas/Electric Units