No info about availability.
4 pole, 24 dB per octave VCF
Filter .com, MU
http://www.mattsonminimodular.com/shop/index.php?main_page=product_info&cPath=1_2_14&products_id=1&zenid=4dd29361e528b410c1c740986c6e048b
Included in 9 Racks, 3 are public: