NL Series Quick Coupling

BOLTON NL Series Quick Couplings are single valve designed for general use. They are divided by flows:
NL20 type (low flow) and NL40 type (high flow). Regardless of sizes and connection types, sockets and
plugs can be interchangeable within NL20 type and within NL40 type (however, NL20 and NL40 types can
not be interchanged between the types).