Comparison Chart
| Actaris | Fisher | Equimeter | American | Maxitrol |
| B42R | S250,S402 | 043,143-6 | 1213,CR4000 | 325-3,-5,-7 |
| B31R | S102 | 143-6,143-80 | 1813C | |
| B34SR | S302 | 143-80 | - | 210D |
| B34R | S202 | 243-8,243-12 | 1813B | 210D,210E |
| B38R | - | - | 1813B | 210E |
| CL31 | S301D | - | 1800CP | |
| CL231 | - | - | - | |
| CL34 | 299 | 243RPC | 2002 | |
| CL38 | - | - | - | |
| RB1700 | 133L,H | 121,122 | 3000 | |
| RB4000 | 1098EGR | 441/461 | 3000 | |
| B35 | 627,630 | 046 | - | |
| *NOTE: THIS IS A GUIDE ONLY | ||||