http://store.yahoo.com/fittingsandadapters/straigneedva2.html
Straightway Needle Valve With
External And Internal Pipe Threads 
Part
Number Pipe
Thread W X Closed
Y List
Price Sale
Price 
2305x2 1/8 1.12 1.16 .86 5.75 2.87 
2305x4 1/4 1.38 1.56 1.00 8.36 4.18