A coupling includes a first input port and a photoluminescent portion associated with the first input port. The first input port may be one or more of a gastric port, a jejunal port, or a balloon port. The first port may have a first glow-in-the dark feature and a second port may have a second glow-in-the-dark feature, which may be different from one another. The coupling may include means for orientation that assists a user in properly orienting a connector to be mounted in the first port in proper orientation and a first connector for coupling to the first port.