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LiquidCool · 08-13-2001, 06:04 AM

OK! There are two measurements to a fitting. There is the tubing size. This is usually measured by the ID(Inner Diameter) of the tubing that is used with it. The other measurement is the thread size. This is usually reffered to as NPT.

Say you have a 3/8"ID x 1/4"NPT fitting. This means you would use a 3/8"ID hose and the threaded end would go into a 1/4"NPT threaded port.

Most of the people lately are going to a 1/2"ID tube, but the NPT thread is still the same.

08-13-2001, 06:04 AM	#2
LiquidCool Cooling Savant Join Date: Apr 2001 Location: Central Florida Posts: 231	OK! There are two measurements to a fitting. There is the tubing size. This is usually measured by the ID(Inner Diameter) of the tubing that is used with it. The other measurement is the thread size. This is usually reffered to as NPT. Say you have a 3/8"ID x 1/4"NPT fitting. This means you would use a 3/8"ID hose and the threaded end would go into a 1/4"NPT threaded port. Most of the people lately are going to a 1/2"ID tube, but the NPT thread is still the same.