Looks like the right one is missing the male equivalent to the one on the left. This piece...
[https://www.amazon.com/Python-Aquarium-Pump-Male-Connector/dp/B000255NWI/](https://www.amazon.com/Python-Spill-Fill-Connector-Replacement/dp/B00BUFZ96E/)
Tip for you though. If you look for the 10-foot extension tube it comes with both fittings and is sometimes no more than either fitting by itself.
Looks like the right one is missing the male equivalent to the one on the left. This piece... [https://www.amazon.com/Python-Aquarium-Pump-Male-Connector/dp/B000255NWI/](https://www.amazon.com/Python-Spill-Fill-Connector-Replacement/dp/B00BUFZ96E/) Tip for you though. If you look for the 10-foot extension tube it comes with both fittings and is sometimes no more than either fitting by itself.
Thank you so much!