Specifications︰ Item No. / Tube O.D. ( Inch )
N-04 1/4
N-06 3/8
N-08 1/2
N-10 5/8
N-12 3/4
N-14 7/8

Made of high quality forged brass.
Absolutely non-porous.
Eliminate seepage of refrigerant, cracking and splitting.