These fittings have been machined. The 1/4 NPT side was included, but the 1/8" NPT ended up in the mating fitting without even tightening. Almost like a straight thread, but worse. I don't recommend them at all. I'm also not 100% sure it's stainless steel. Good price for a bad part.
Vacuum cleaner Dreame V9 Global, white
145 Review
12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review
DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review
1 Inch Beduan Brass Electric Solenoid Valve, 12V Normally Closed Air Valve For Water, Gas, Fuel, And Oil
10 Review