I looked and looked for an equivalent but wasn't able to find a nontoxic cleaner that really took on the heavy jobs in the same way. But... I discovered that they do sell it in England, where it is made. I do order from there and continue to use it, quite happily. So if you are a cleaning aficianado, you can go to
www.naturitas.us/p/home-and-garden/home-and-kitchen/household-detergents/bathroom-cleaner-500-ml-ecover?gclid=CjwKCAjwj6SEBhAOEiwAvFRuKHfrKFSE40nGMg82CCSjyQOqTLduBDvLmFKTMosQb-s-ESqcaLXxexoC7Q8QAvD_BwE
to order it for yourself!