Short answer: Pick a hot water pressure washer trailer by flow first. 4–5 GPM suits one operator on light to medium work, 5.6–6 GPM runs one or two guns, 8–10 GPM is the workhorse for two-operator fleet and equipment washing, and 12–25 GPM packages run up to four operators at once. Listed starting prices on hotandmightydirect.com as of October 2026 run from $16,910 to $97,290, with final pricing in a written quote.
Every model below runs hot or cold water, is built to order and is delivered nationwide. If you are still deciding how much pressure and flow your work needs, start with our guide to PSI vs. GPM, then come back here to match a build.
Which hot water pressure washer trailer models do you offer, by GPM?
| Flow class | Model | Output | Operators | Platform | Water storage | Listed starting price |
|---|---|---|---|---|---|---|
| 4–5 GPM | Open A1 MDB-3004 | 3.9 GPM @ 3,000 PSI | 1 | Open, single axle | 200 gal | $16,910 |
| 4–5 GPM | Open TA2 MEC-3005 | 4.7 GPM @ 3,000 PSI | 1 | Open 7' x 14', tandem axle | 535 gal | $18,690 |
| 4–5 GPM | Slider MDS-5357 (diesel) | 5 GPM @ 3,500 PSI | 1 | Skid for your truck or trailer | 335 gal | $29,530 |
| 4–5 GPM | General TA3 5053 PGPD (propane) | 5 GPM @ 3,500 PSI | 1 | Enclosed 7' x 16' | 335 gal | $38,970 |
| 5.6–6 GPM | Slider MCS-3506 | 5.7 GPM @ 3,500 PSI | 1 or 2 | Skid for your truck or trailer | 335 gal | $18,670 |
| 5.6–6 GPM | Open A1 MCS-3506 | 5.7 GPM @ 3,500 PSI | 1 (2 with add-ons) | Open 5' x 8', single axle | On-washer tank | $19,820 |
| 5.6–6 GPM | Chopper A1 MCS-3506 | 5.6 GPM @ 3,500 PSI | 1 or 2 | Enclosed 5' x 10', single axle | 200 gal | $32,390 |
| 5.6–6 GPM | Commander TA3 MCS-3506 CWP | 6 GPM @ 3,500 PSI | 1 or 2 | Enclosed 7' x 14', cold weather package | 535 gal | $38,930 |
| 5.6–6 GPM | General TA3 MCS-3506 CWP | 6 GPM @ 3,500 PSI | 1 or 2 | Enclosed 7' x 16', cold weather package | 535 gal | $42,610 |
| 5.6–6 GPM | General TA3 MCS-3006 (diesel) | 6 GPM @ 3,000 PSI | 1 or 2 | Enclosed 7' x 14' | 535 gal | $46,890 |
| 8–10 GPM | Money Maker 3008 | 8 GPM @ 3,000 PSI | 1 or 2 | Open steel deck 7' x 14', tandem axle | 300 gal | $28,995 |
| 8–10 GPM | Money Maker 3010V | 10 GPM @ 3,000 PSI | 1 or 2 | Open steel deck 7' x 14', tandem axle | 300 gal | $33,490 |
| 8–10 GPM | General TA3 MCS-3008 | 7.8 GPM @ 3,000 PSI | 1 or 2 | Enclosed 7' x 16' | 535 gal | $39,490 |
| 8–10 GPM | General TA5 MES-3008 CWP | 8 GPM @ 3,000 PSI | 1 or 2 | Enclosed 7' x 16', cold weather package | (2) 400 gal | $47,810 |
| 8–10 GPM | Open TA5 MDS-8307K (diesel) | 8 GPM @ 3,000 PSI | 2 | Open 6' x 16', steel deck | 900 gal | $47,820 |
| 8–10 GPM | General TA5 MCS-3008 CWP | 8 GPM @ 3,000 PSI | 1 or 2 | Enclosed 7' x 16', cold weather package | (2) 400 gal | $49,290 |
| 12–25 GPM | General TA3 (2) MCS-3506 | Two washers, 6 GPM @ 3,500 PSI each | Up to 4 | Enclosed 7' x 14' | 535 gal | $49,760 |
| 12–25 GPM | Open TA3 MDS-10307 (diesel) | 20 GPM @ 3,000 PSI (two 10 GPM washers) | Up to 4 | Open 7' x 14', tandem axle | 535 gal | $72,490 |
| 12–25 GPM | Invader TA3 Custom HM-40025 CWP | 25 GPM @ 4,000 PSI | Up to 4 | Enclosed 7' x 20', cold weather package | 300 gal surge tank | $97,290 |
Listed starting prices on hotandmightydirect.com as of October 2026. Options, recovery equipment and delivery change the total, so every build gets a written quote.
Who should buy a 4–5 GPM trailer?
A single operator cleaning equipment, storefronts or small fleets on a budget. These are the lightest rigs to tow. The trade-off is time: at 4–5 GPM you rinse slower than a two-gun rig, so they fit routes with short stops.
When is a 5.6–6 GPM trailer the right size?
When one operator wants more rinse speed, or two operators can split the flow at about 3 GPM each. This is the most common size for contract cleaners. Enclosed versions like the Chopper keep the washer locked and out of the weather.
Why do fleet washers move up to 8–10 GPM?
Flow carries soil away, so 8–10 GPM cuts rinse time on trucks, trailers and heavy equipment. Two operators can work at about 4 GPM each. The Money Maker open deck trailers are the lowest listed price in this class; the enclosed General TA5 builds add the cold weather package and two 400 gallon tanks.
What do 12–25 GPM, four-operator packages cost?
Listed starting prices run from $49,760 for two 6 GPM washers in one enclosed trailer to $97,290 for the custom 25 GPM Invader. These suit large fleets, industrial plants and crews that need up to four guns running at once.
Should I add wash water recovery?
If you wash where runoff can reach a storm drain, plan for it. Many cities in California and Texas require mobile washers to capture wash water. Any model above can be quoted with a recovery vacuum and filtration; see our recovery and recycling systems and the guide to adding recovery to an existing washer.
Frequently asked questions
How many GPM do I need in a hot water pressure washer trailer?
One operator on light to medium work does well at 4–6 GPM. Two operators washing fleets or heavy equipment should look at 8–10 GPM. Crews running three or four guns need 12 GPM or more, usually from two washers on one trailer.
What is the cheapest hot water pressure washer trailer you list?
The Open A1 MDB-3004, at a listed starting price of $16,910 as of October 2026: 3.9 GPM at 3,000 PSI with a 200 gallon tank on a single axle open trailer. The Slider MCS-3506 skid is $18,670 if you already own a trailer or flatbed.
Open or enclosed trailer: which should I choose?
Open trailers cost less and are easy to service. Enclosed trailers lock up the washer, keep it out of rain and road grime, and can take our cold weather package for washing through freezing weather. See our cold weather packages.
Gas, diesel or propane?
Gas engines keep the price down. Diesel models (MDS, MCS-3006 and MES-3006 builds) suit long daily run times. The General TA3 5053 PGPD is propane fired and propane driven. Your quote lists the engine and burner for each build.
How long does a build take, and how is it delivered?
We keep trailers and washers in stock for quicker builds, and every quote includes the build time. Every rig is delivered nationwide, with free training at pickup or recorded and live remote training for delivered units.
How do I get an exact price?
Text us at 574-233-9111 or call 800-897-7515, Monday–Friday 9–5 EST. Tell us what you clean, how many operators and whether you need recovery, and we will send a written quote. Hot And Mighty has 50+ years of experience building to spec.
For a full cost breakdown with options, see how much a pressure washer trailer costs.
