No info about availability.
Dual DC offset adder
The EMW Dual DC Shifter is a simple utility module that lets you add a positive or negative offset to an incoming signal. This is useful for turning bipolar signals (+/- 5v) into a unipolar range (or vice-versa) and transposing CV sequences.
http://www.electronicmusicworks.com/eurorack/dual-dc-shifter.html