Up for sale is the Source Audio Soundblox 2 Manta Bass Filter. This thing isn't just a standard envelope filter - it's packed so full of options and even has a drive section. Compatible with the SA Hot Hand and other SA accessories. I bought this new and it's in great condition. Comes with the box, power supply, and manual. The label on the bottom is damaged a bit from me removing the 3M dual lock that was on it. $130 shipped (CONUS only). I accept Paypal, Google Wallet or Bitcoin.
Here's a YouTube demo of the phaser sound on the Manta (among others): But your post had me playing around with this pedal again for an hour or two, because I wanted to record a phaser sound demo. The variety and quality of tones in this pedal are just too good to let go for $130. Even though I recently got a Wonderlove (which is awesome in its own right), I think I'm gonna have to keep the Manta too!