I have not seen a deal on this for a while, just bought myself one. Note this product is somewhat between the strength of a garden hose and a basic pressure washer, however it is much more portable and versatile than either of those solutions.
Must use coupon code P15HOME on the eBay mobile app.
This is the WG629.1 Value Bundle set which includes an additional:
Soap dispenser attachment
7" Cleaning brush attachment (water + brush)
Bottle cap connector (attach a 1-2L bottle as the water source)
Details can be found here:
There are two speed settings and you can go from 94 PSI up to 320 PSI
So in total, what's included in the box is:
(1) - HYDROSHOT PORTABLE POWER CLEANER
(1) - 20V MAX LITHIUM BATTERY
(1) - 20V BATTERY CHARGER
(1) - SOAP DISPENSER ATTACHMENT
(1) - 7" CLEANING BRUSH ATTACHMENT
(1) - HANDHELD WINDOW SQUEEGEE
(1) - BOTTLE CAP ATTACHMENT
(1) - 20 FOOT HOSE
(1) - SHORT LANCE
(1) - EXTENSION LANCE
(1) - MULTI-SPRAY NOZZLE
(1) - CARRY BAG
For those interested, the 40V standard bundle (does not include the 4x additional accessories) is $84.99 after discount.
From what I could research, the 40V model is primarily a longer runtime. PSI difference is relatively negligible (335 PSI vs 320 PSI on the 20V).