Tyeler:
We replaced all our yellow barbed fittings with Dometic Odor Safe Hose fittings. These fit the odor safe and all 1 1/2" hose and have no barbs. This makes a better seal they report. You can read about this here:
www.dometic.com/en-us/us/products/hygien...nitation/accessories
Note: since these are smooth tight fitting hose connections you will need to add lubrication to the fittings and you may even need to heat the hose a bit with boiling water or a rag with boiling water poured on it or dip the hose end into hot water for a few minutes, then press it on asap.
Hayden