16.5 vs 30 Inch Surface Cleaner: Fit, Flow & Storage
A larger cleaning deck is useful only if it fits your route and matches your pressure washer. For narrower paths and easier storage, start with the 16.5-inch VEVOR surface cleaner. For broad, open paving, compare the 30-inch model—then check the available flow and working pressure before choosing. These are pressure-washer attachments; they need a separate compatible washer.
Compare the two exact configurations
| Check | 16.5 inch / Armrest | 30 inch / Armrest |
|---|---|---|
| Model | QD-XDP12 | QD-XDP15 |
| Disc diameter | 16.5 in / 419 mm | 30 in / 762 mm |
| Listed overall dimensions | 16.9 × 16.9 × 57.9 in | 30.1 × 30.1 × 61.8 in |
| Product weight | 17.1 lb | 30.2 lb |
| Pressure range | 2,000–4,000 PSI | 2,000–4,000 PSI |
| Water flow rate | 3–4 GPM | 3–4 GPM |
| Listed maximum water temperature | 140°F / 60°C | 140°F / 60°C |
| Housing material | 430 stainless steel | 430 stainless steel |
| Exact option | View 16.5 inch / Armrest | View 30 inch / Armrest |
Dimensions above are the listed assembled measurements. Leave additional room for turning, the hose and handling; disc diameter alone is not the full space requirement.
Choose the deck that fits your route
Measure the narrowest place you need to clean: a gate, a strip beside a wall or a path between planting beds. Compare that space with the full cleaner width. The 16.5-inch configuration is approximately 13.2 inches narrower overall and 13.1 lb lighter. Those differences matter if you carry the attachment between jobs or store it on a shelf.
The 30-inch disc spans a wider strip, which can be useful across an open driveway or patio. That does not establish a cleaning-speed multiplier. The pace that produces a consistent finish also depends on available flow, surface condition, overlap and the material you are cleaning.
Match flow as well as pressure
VEVOR lists the same pressure and flow ranges for these two SKUs. Check your washer's working specifications together: a maximum PSI number by itself does not tell you whether the washer supplies the listed flow. If your equipment cannot meet the attachment's requirements, confirm compatibility before ordering.
Both product descriptions list a 3/8-inch quick connector and M22-14 and M22-15 adapters. Check the actual hose connection and adapter dimensions rather than assuming a familiar thread name guarantees a match. Confirm the allowable water temperature and operating instructions for both the washer and attachment.
Plan storage and handling
For the #QD-XDP15, allow for a listed 30.1-inch square footprint and 61.8-inch overall height. The #QD-XDP12 is listed at 16.9 inches square and 57.9 inches high. Before buying, check the doorway to your storage area, the transport space and whether the listed weight is comfortable for you to move. Do not assume the handle folds unless that is confirmed for the delivered model.
Frequently asked questions
Does this include the pressure washer?
These listings are surface-cleaning attachments. Select a compatible separate washer and check the exact attachment package before purchase.
Is 30 inches automatically better for a home driveway?
Choose it when the open working area, storage space and washer specifications suit it. A smaller deck can be easier to place around narrower sections.
Can I choose using maximum PSI alone?
No. Compare working pressure, flow, hose fittings and operating limits together.
Which SKU am I buying?
The 16.5-inch configuration is GYQXJBMQJQDMJWWPK001V0; the 30-inch configuration is GYQXJBMQJQDM7BLTD001V0. Both use the Armrest option on this Dekuch listing. Check the selected variant before adding it to your cart.
Check current options
Compare VEVOR surface cleaners at Dekuch for live availability, or explore the VEVOR Buying Guides hub.
Sources: VEVOR manufacturer specifications for QD-XDP12 and QD-XDP15, cross-checked against the corresponding Dekuch SKUs.