mech. I don't know why the ends are round instead of 6 points for tightening the fittings. You must have access to the body of the fitting to tighten it. Also, the body seemed to be an odd size. I couldn't find any mm or sae wrenches that fit properly. It was too small for a wrench. I had to resort to water pump pliers and ripped this thing trying to tighten it. I deformed the fitting with pliers trying to tighten it. Unsuitable for anything practical due to its small size and lack of 6-point tightening ends.
Joywayus 5/8" ID Hose Barb Hex Union Brass Fitting Water/Fuel/Air With 10 Stainless Steel Clamps (Pack Of 5)
13 Review
12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review
Vacuum cleaner Dreame V9 Global, white
145 Review
6 Pack Miahart Adjustable 304 Stainless Steel 4 Inch Hose Clamp Duct 91Mm-114Mm Worm Gear Pipe Clamp For Automotive, Mechanical Agriculture.
18 Review