The Ashcroft® 1128 differential pressure gauge is used to measure the differential pressure between two separate pressure sources.
| Accuracy Dial | Size and Case Material | Ranges |
| ASME B40.100 Grade A (±2-1-2% of span) | 4.5", 6" Aluminum | 1/4" NPT 10/0/10 to 400/0/400 psi |
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