Got it to connect! SunJoe SPX3000 to Adam's MTM Snub Nose.   Parts needed (left to right) - ADAPTER FOR AR BLUE/SUNJOE/OTHER M22 15MM, https://www.obsessedgarage.com/collections/sunjoe-accessories/products/adapter-for-ar-blue-sunjoe-other-m22-15mm - M22 x 3/8" MNPT Screw Nipple (M22 outlet) - 3/8" Quick Connect Socket to 3/8" Female Connection - Plumbers tape (not shown, but I know is necessary)