Stelflow 120 Indirect Unvented Cylinder S120I
| A | B | C | D | E | F | G | I | K | ||
| Indirect | Product Code | HEIGHT | DIAMETER | COLD WATER INLET | PRIMARY COIL FLOW | PRIMARY COIL RETURN | AQUASTAT POCKET BOTTOM | T&P RELIEF VALVE | IMMERSION HEATER BOTTOM | SECONDRY RETURN |
| 120 | TRSMVI-0120LFB | 900 | 545 | 480 | 440 | 200 | 387 | 710 | 686 | |
| 150 | TRSMVI-0150LFB | 1100 | 545 | 560 | 520 | 200 | 387 | 890 | 670 | |
| 180 | TRSMVI-0180LFB | 1280 | 545 | 600 | 560 | 200 | 392 | 1085 | 710 | |
| 210 | TRSMVI-0210LFC | 1470 | 545 | 640 | 600 | 200 | 467 | 1265 | 750 | 1160 |
| 250 | TRSMVI-0250LFC | 1720 | 545 | 640 | 600 | 200 | 467 | 1520 | 750 | 1410 |
| 300 | TRSMVI-0300LFC | 1980 | 545 | 640 | 600 | 200 | 467 | 1785 | 750 | 1605 |