The Stellar Hot Runner system product line includes optional standard manifolds designed to be used specifically with the threaded-style Stellar nozzle assemblies (nozzle assemblies are “threaded” into the manifold). One of these manifolds would be referred to as an “MNA” (plural = “MNAs”). An MNA is an abbreviation for “Manifold Nozzle Assembly”. When you order a Stellar MNA system, you are ordering the manifold, manifold components, manifold extension nozzle (“MEN”), nozzle assemblies and tip assemblies. It is not uncommon for a customer to refer to the Stellar standard manifold itself as an “MNA” but in reality that is a misnomer. For more information on Stellar MNAs, please refer to the MNA (round or rectangular) design manuals here, or contact your DME Customer Service Representative for assistance.