| Part Number | Description |
|---|---|
| SP0 | 400W SPIRAL |
| SP1 | Infrared Spiral Elem 500-550W |
| SP10 | INFRARED SPIRAL Element 1200W |
| SP11 | INFRARED SPIRAL Element 1450W |
| SP12 | INFRARED SPIRAL Element 1500W |
| SP13 | INFRARED SPIRAL Element 2000W |
| SP14 | INFRARED SPIRAL Element 2200W |
| SP2 | Infrared Spiral Element 600W |
| SP3 | INFRARED SPIRAL Element 700W |
| SP4 | INFRARED SPIRAL Element 750W |
| SP5 | INFRARED SPIRAL Element 800W |
| SP6 | INFRARED SPIRAL Element 850W |
| SP7 | INFRARED SPIRAL Element 900W |
| SP8 | INFRARED SPIRAL Element 1000W |
| SP9 | INFRARED SPIRAL Element 1100W |