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The CA-3504-1MGH produces 3500 PSI at 4.0 GPM — 14,000 cleaning units — from a 389cc Honda GX390 OHV engine on Mi-T-M's 125-lb aluminum frame. The 1MGH is the high-flow variant of the CA-3504 frame: where the standard CA-3504-1MAH produces 3.5 GPM with an AR pump (12,250 CU), the 1MGH adds 0.5 GPM with a General pump, increasing cleaning output to 14,000 CU — matching the JP-4004-3MHB output but in a lighter aluminum chassis. ETL listed for US commercial use.
The General pump is a commercial-grade crankshaft pump that supports higher flow rates than the standard AR configuration on the CA-3504-1MAH/K/M variants. The 4.0 GPM rating at 3500 PSI means 14,000 CU — the same cleaning output as the CA-4004-1MAH at 4000 PSI / 3.5 GPM, but delivered through higher flow rather than higher pressure. Higher GPM is advantageous for large flat surface areas where flow coverage per pass is more important than concentrated pressure.
The CA-3504-1MGH's 4.0 GPM flow rate makes it particularly effective for large flat surface cleaning — parking lots, warehouse floors, aircraft aprons, and large building facades — where high flow covers more surface per pass than high pressure alone. Fleet operators washing large-surface vehicles (box trucks, flatbeds, buses) benefit from the increased rinse rate. Property restoration contractors apply it to wide masonry surfaces before coating. Industrial facilities use it for large-footprint equipment pads where faster rinse cycles reduce downtime. The aluminum frame's 125-lb weight remains manageable for solo operators despite the higher-output pump configuration.
Rated at 4.0 GPM at 3500 PSI (14,000 cleaning units) at rated flow. Includes quick-connect nozzles in 0°, 15°, and 25° patterns; 50-ft × 3/8-in non-marking high-pressure hose; 48-in lance with insulated trigger gun. External bypass system integrated with pump. Cold water only. 49-state engine — not for sale in California.
| PSI | 3500 PSI at rated flow |
| GPM | 4.0 GPM |
| Cleaning Units | 14,000 CU (PSI × GPM) |
| Engine | 389cc Honda GX390 OHV |
| Pump Type | General Crankshaft |
| Unloader | Adjustable Pressure |
| Hose | 50 ft × 3/8 in non-marking |
| Lance | 48 in |
| Nozzles Included | 0°, 15°, 25° quick-connect |
| ETL Listed | Yes |
| Net Weight | 125 lbs |
| Dimensions (L × W × H) | 42.5 × 23.5 × 24.5 in |
| Hot/Cold | Cold water only |
| California Sale | Not for sale in CA (49-state engine) |
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