- Trusted SellerGraham 12VSF-16L- Manufacturer: Graham
- Model: 12VSF-16L
 Used Graham model 12VSF-16L spiral heat exchanger. 12" diameter X 8" wide. 5/8" diameter tubes. S/N 67678-1. Hainesport, NJ
Used Graham model 12VSF-16L spiral heat exchanger. 12" diameter X 8" wide. 5/8" diameter tubes. S/N 67678-1.