Merchant couplings are threaded all the way through.
Tapped: 1/8″ to 2″ straight, 2-1/2″ to 8″ taper

1.800.561.3164
25 Whaley Avenue
P.O. Box 310
Milverton, Ontario
N0K 1M0 Canada
Boshart Industries LLC 1810 Enterprise Boulevard, West Sacramento, CA 95691 US