Comparison : Item # M24-70, Diameter Index Safety System (DISS) 1240 Oxygen Dual "Y" Outlet Demand Valve Coupler with 1/8 Inch (in) Female National Pipe Thread (NPT) without Connector
Item # M24-71, Diameter Index Safety System (DISS) 1240 Oxygen Dual "Y" Outlet Demand Valve Coupler with 1/4 Inch (in) Female National Pipe Thread (NPT) without Connector
Item # M24-74, Diameter Index Safety System (DISS) 1240 Oxygen Dual "Y" Outlet Demand Valve Coupler with Hex Nut and Nipple
Item # M24-75, Diameter Index Safety System (DISS) 1240 Oxygen Dual "Y" Outlet Demand Valve Coupler with Handtight Nut and Nipple
Item # M24-76, Diameter Index Safety System (DISS) 1240 Oxygen Dual "Y" Outlet Demand Valve Coupler with Chemetron® Adapter