| HotFlo! | Hot Sprue Dimensions | |
 |
| Code | Dimension in millimeters | |||||
| Series | 8 | 12 | 16 | 20 | 24 | |
| LN | 76 | 81 | 101 | 161 | 196 | |
| LN | 86 | 91 | 116 | 191 | ||
| LN | 106 | 111 | 136 | |||
| LN | 131 | 156 | ||||
| LH | 31.5 | 35 | 40 | 50 | 50 | |
| D4 | 52 | 70 | 90 | 110 | 130 | |
| D2 | 22 | 32 | 40 | 50 | 60 | |
| L23 | 25 | 50 | 60 | 70 | 100 | |
| D24 | 25 | 40 | 50 | 60 | 80 | |
| Issue | Date | www.hotflo.com |
| 5 | 22nd June 2004 | Series 20 updated |
| 4 | 23rd March 2003 | Series 20 updated |
| 3 | 5th March 2003 | Series 20 added. Series 6, 32, 48 removed. |
| 2 | 21st October 2002 | Series 8 and 6 updated. |
| 1 | 1st July 2000 | Preliminary release. |
 |
|
 |
|||||||||