Bulkhead DIY from existing pvc couplers

After some brainstorming and wanted a alternative for a bulkhead i came up with this diy bulkhead this should be as efficient as a normal bulkhead though using existing pvc couplers since bulkheads are not available where i live this should be e perfect bulkhead replacement. This is a 1inch but you can modify it with tinkercad to make any size.

 https://www.tinkercad.com/things/1SfIUZhRpRJ

Requirements  

pvc coupler 1 inch ( or any size) male and female.
one 2 ¼ OD Neopreen seal on the male side.

Recommended  print it solid !