«Y» piece for attaching two hose lines to same regulator. Assemble on regulator outlet.
 
rozgalezniki
37-R with two needle valves ( 9/16″ UNF right )
37-R2 without valve ( 9/16″ UNF right )
3YAR with two needle valves ( 9/16″ UNF right )
3YBR with two needle valves ( BSP 3/8″ right )
3YFR with two needle valves ( M16x1.5 right )
3Y5/8R with two needle valves ( 5/8″ UNF right )

 

 
37-L with two needle valves ( 9/16″ UNF left )
37-L2 without valve ( 9/16″ UNF left )
3YAL with two needle valves ( 9/16″ UNF left )
3YBL with two needle valves ( BSP 3/8″ left )
3YFL with two needle valves ( M16x1.5 UNF left )
3Y5/8L with two needle valves ( 5/8″ UNF left )