Just found it available here https://www.aquariumlowcost.com/aut...er-change-and-auto-top-off-for-aquariums.html. $235 + $50 shipping is not bad.
But I also found out the existence of Kamoer X1 Pro T. It's basically the same capability as Ecotech Versa, only for $79 a head. Using two to implement AWC will be cheaper than getting a X2SR. X2SR also include the ATO capability for fuller package for higher cost, but I doubt most will not use its ATO function anyway. I bought two of them. It will take like a month to get to me though since it's shipped from China just like aliexpress.
But I also found out the existence of Kamoer X1 Pro T. It's basically the same capability as Ecotech Versa, only for $79 a head. Using two to implement AWC will be cheaper than getting a X2SR. X2SR also include the ATO capability for fuller package for higher cost, but I doubt most will not use its ATO function anyway. I bought two of them. It will take like a month to get to me though since it's shipped from China just like aliexpress.
Kamoer X1 Pro T Stepper Pump Single Head with WiFi
Brand : Kamoer Type : Stepper pump Model : X1 Pro T
www.aquariumlowcost.com