End Caps for 16mm PVC Pipe

I created these to go on the ends of 16mm PVC Pipe from Mitre 10 which is likely available at many places. The 16mm is the internal diameter of the pipe. The outer diameter is 20mm so may suit a bunch of different pipes/conduits. There are 2 caps. 1x is a closed end cap, the other has a slot to suit 3x 1.75mm wires. The purpose of the caps is to create a sealed pipe for putting LED's in for an aquarium as the stock silicon sleeve was @#$%^ frustrating :)