All variants compared

Product no	Thread [G1]	Thread [G2]	Stock
A04NMF-04NPS	1/4" NPT	1/4" NPSM	Available
A04NMF-06NPS	1/4" NPT	3/8" NPSM	Available
A06NMF-06NPS	3/8" NPT	3/8" NPSM	Currently not available
A08NMF-08NPS	1/2" NPT	1/2" NPSM	Available
A12NMF-12NPS	3/4" NPT	3/4" NPSM	Available
A16NMF-16NPS	1" NPT	1" NPSM	Available

Thread [G1]	1/4" NPT
Thread [G2]	3/8" NPSM
Description	Straight screw-on connector, NPT, pre-mounted on one side