Pool Robotic Cleaner Cable Grommet

I wanted to route my Robotic Pool cleaner cable through the side of the pool shed, but also wanted to protect the cable from chaffing and reduce any rain water/dust etc entering the Pool Pump Shed. So I designed this 2 peice grommet, I would print it in either ABS or TPU. Once the grommet is through the hole (32mm) I used an o'ring in the designed slot to hold the 2 halves together. Pool cleaner cable is 10mm in diameter.