I bought these before reading the reviews and after not "feeling" the threads during installation I went back and checked. .550 on quarter inch fittings. The default is 0.540 and it seems that most of them are actually around 0.530, making the problem worse. I solved it with sandpaper and a heavy wire brush application. I clamped them with a metal vice and now they don't seem to flow. If I didn't need them immediately I would send them back.
GeilSpace 6 Pack Of 3/4" Γ 8" Black Metal Pipes - Ideal For DIY Industrial Shelving - Fits Standard 3/4" Black Threaded Pipes And Fittings - Vintage Industrial Steel Pipe (Black)
11 Review
Goodyear Ultra Grip Ice 2 205/50 R17 93T winter
128 Review
Flexaust 231 Plastic Elbow Black: Durable and Efficient Pipe Fitting Solution
11 Review
Good 12674 Rubber 50 Feet 8 Inch
9 Review
Vacuum cleaner Dreame V9 Global, white
145 Review
DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review
High-Quality QiiMii Stainless Steel Sanitary Clamp With Silicone Gasket - 2 Inch, Single Pin Tri Clover Design
16 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