The recirculating toilet is discontinued by Thetford so I doubt it. The new Sport models have the Laveo Dry Flush toilet. The SeaLand venting has been a point of contention. It’s not ideal but it’s the best solution for what they have to work with.
I installed the Dometic SeaLand toilet in my 3326 and it’s some of the best money I’ve spent on the camper. Vented correctly and with the right toilet treatment it works great. I highly recommend Liquify…
https://a.co/d/1vmXYYB
I highly recommend adding a tank flush because the biggest design flaw is the bottom of the tank is flat so all the chunks don’t flow towards the drain in the center. I have this one waiting to be installed; others have installed it at my recommendation and said it works great.
https://a.co/d/9vqtCHV
The other mod you may want to make is a water heater bypass. With a real flushing toilet you will have to push antifreeze through the plumbing to winterize or the flush valve will freeze and crack. Ask me how I know…
I think TM now installs a bypass from the factory but I’m not sure. I used this one. Took some effort to install but works perfectly.
https://a.co/d/c6xixzx
Any other questions on this toilet please ask!