Aquaphor RO-50S reverse osmosis membrane module

I am selling an Aquaphor RO-50S membrane replacement module for reverse osmosis filtration systems. The module itself has only been removed from its packaging. An incompatible membrane module was mistakenly purchased with the filtration system. The photo shows which systems it is compatible with. It will be suitable for systems that do not require water drainage from the lower part of the membrane replacement module. Located in Teika, near VEF.