All variants compared

Image	Product no	Product description	Thread [G1]	Thread [G2]	Stock	...
	A17JM-12NM		1.1/16" UN	3/4" NPT	Available
	A17JM-16NM		1.1/16" UN	1" NPT	Available
	A17JM-08NM		1.1/16" UN	1/2" NPT	Currently not available
	A21JM-12NM		1.5/16" UN	3/4" NPT	Available
	A21JM-16NM		1.5/16" UN	1" NPT	Available
	A21JM-20NM		1.5/16" UN	1.1/4" NPT	Available
	A26JM-16NM		1.5/8" UN	1" NPT	Available
	A26JM-20NM		1.5/8" UN	1.1/4" NPT	Available
	A30JM-20NM		1.7/8" UN	1.1/4" NPT	Available
	A30JM-24NM		1.7/8" UN	1.1/2" NPT	Currently not available
	A08JM-02NM		1/2" UNF	1/8" NPT	Available
	A08JM-04NM		1/2" UNF	1/4" NPT	Available
	A08JM-06NM		1/2" UNF	3/8" NPT	Available
	A12JM-06NM		3/4" UNF	3/8" NPT	Available
	A12JM-04NM		3/4" UNF	1/4" NPT	Available
	A12JM-08NM		3/4" UNF	1/2" NPT	Available
	A12JM-12NM		3/4" UNF	3/4" NPT	Available
	A07JM-04NM		7/16" UNF	1/4" NPT	Available
	A07JM-06NM		7/16" UNF	3/8" NPT	Available
	A07JM-02NM		7/16" UNF	1/8" NPT	Available
	A07JM-08NM		7/16" UNF	1/2" NPT	Available
	A14JM-16NM		7/8" UNF	1" NPT	Available
	A14JM-12NM		7/8" UNF	3/4" NPT	Available
	A14JM-06NM		7/8" UNF	3/8" NPT	Available
	A14JM-08NM		7/8" UNF	1/2" NPT	Available
	A09JM-08NM		9/16" UNF	1/2" NPT	Available
	A09JM-02NM		9/16" UNF	1/8" NPT	Available
	A09JM-06NM		9/16" UNF	3/8" NPT	Available
	A09JM-04NM		9/16" UNF	1/4" NPT	Available