Graco Mark XV XT (Standard 18H403 & ProContractor 18H406): the new “high-output” benchmark in electric airless spraying
Graco is expanding its XT range with two new Mark XV XT electric airless sprayers, designed for heavy coatings and high-production jobsites:
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Mark XV XT Standard (ref. 18H403)
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Mark XV XT ProContractor (ref. 18H406)
The goal: deliver gas-like power while keeping the benefits of electric sprayers (quieter operation, comfort, indoor access, simplicity).
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- Graco Mark XV XT Standard – 18H403
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- Graco Mark XV XT ProContractor – 18H406
Why the Mark XV XT is a game-changer (even on a standard outlet)
The Mark XV XT is presented by Graco as “the most powerful Mark ever”, built to spray tough materials while increasing square meters per day.
1) “Gas-level” performance on 230 V
Graco highlights gas-like performance from a standard 230 V outlet (and 110 V on some versions), thanks to the XT motor and AMPLIFI™ technology.
2) High flow for faster production (and even multi-gun work)
The Mark XV XT delivers up to 10.6 l/min (2.8 GPM): a flow rate clearly aimed at productivity, including multi-gun setups.
3) Built for heavy materials
Graco explicitly mentions uses such as smooth finishing compounds / Q4 finishes, joint compound, paints, primers, etc.
Key features (shared by both versions)
On the official Graco pages, Standard 18H403 and ProContractor 18H406 share the same fundamentals (Hi-Boy platform, flow, pressure, tip size…).
Main technical specs
- Max flow: 10.6 l/min
- Max pressure: 228 bar (3300 psi)
- Max tip size: 0.053″
- Sound level: 79 dB
- Weight: 65 kg (Hi-Boy)
Technologies highlighted by Graco
- XT motor + AMPLIFI™: up to +50% usable power (per Graco), with amperage selection logic to reduce breaker trips.
- Endurance™ Vortex pump + ProConnect™: oversized passages + quick pump swap system to reduce downtime.
- TurboClean™ + WatchDog™: faster cleaning and protection (auto shutoff) to avoid costly dry-run damage.
Standard (18H403) or ProContractor (18H406): which one should you choose?
Both versions target the same core use: high flow + heavy materials. The difference generally comes down to equipment and jobsite comfort.
What the “ProContractor” finish often adds (in real life)
On Graco ranges, ProContractor versions are typically associated with productivity and serviceability upgrades: LED display, hose reel (QuikReel), durability features (MaxLife, ProConnect…), improved suction, etc.
Good to know: for the Mark XV XT, Graco already highlights Endurance Vortex + ProConnect on the product sheet, including on the Standard version.
👉 At Airless Discounter, we recommend choosing mainly based on your field needs: hose management, machine readouts, and minimizing downtime.
Quick recommendations
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You want the best performance/value for large jobs → Mark XV XT Standard (18H403): the “high-flow” base is already massive.
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You want maximum comfort and productivity-focused options → Mark XV XT ProContractor (18H406), especially if you run long jobs and want to reduce handling and downtime.
Which jobs is the Graco Mark XV XT best for?
The Mark XV XT is clearly positioned for:
- Finishing compounds / high-level finishes (Q4 / Level 5 in Graco terminology)
- Paints & primers on large surfaces
- Heavier materials requiring flow + large tips (up to 0.053″)
- Occupied interiors / extended working hours, thanks to quieter electric operation
Why buy from Airless Discounter?
At Airless Discounter, it’s simple: you get not only the machine, but also the full ecosystem (tips, hoses, filters, parts, service), plus guidance to match the right setup to your materials and hose lengths.
📌 The shop product pages are already live (no price yet):
FAQ
What power / performance does the Mark XV XT have?
Graco highlights gas-like power on a standard outlet via the XT motor and AMPLIFI™, aimed at productivity (high flow, multi-gun capability).
What flow and maximum tip size?
The Mark XV XT delivers up to 10.6 l/min and a max 0.053″ tip, with 228 bar max pressure.
Standard vs ProContractor: which should I choose?
Graco ProContractor versions are generally more equipped (e.g., display, hose reel, productivity options), but the Mark XV XT Standard is already “high-output.” Your best choice depends on comfort features and daily workflow optimization.
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Questions or queries?
For any further questions or if you would like to get your hands on one of these products seen in this article, you can contact us on +49 (0) 30 220 15436, fill out our contact form or email us. If you wish to purchase one of the products mentioned above, you can check them out in our online store. You can also visit us at our service base during office hours.
