I just wanted to add that this new code is in effect in a lot of states now and is meant to give service techs an easier access to service the line without having to cut it or pull it apart. It helps to show why I came out with these different devices. They are very inexpensive and definitely a time saver.
New IMC Code (307.2.5) and IRC (M1411.3.3) "DRAIN LINE MAINTENANCE"
Condensate drain lines shall be configured to allow the clearing of blockages and performance of maintenance without having to cut the line.