Walmart offers the Sun Joe 10" SPX Pressure Washer Cleaning Attachment for $11.16. Opt for in-store pickup to drop that to $10.80 and avoid the $5.99 shipping fee. (Amazon charges the same price, for Prime members only, after the on-page coupon.) That's tied with last week's mention and the lowest price we could find by $8 today. It's compatible with all SPX Series pressure washers.