Need to spend some 150$ on a pedal

[CallMeBlind]

I'm going to sell one of my tubescreamers and ehx booster to our guitar player, as she is going to quit worship band, but still wants to keep those pedals. I will get some 150$ for both. I don't usually like to sell my music equipment, so I want to buy another pedal for this money. Now I mostly use only 1 pedal - MXR Bass Auto Q and I would like to have some other filter, maybe different kind of. What could be the recommendations?
P.S. If pedal worth it I can add some more money to my budget.

[Higgie]

Maxon AF-9. Used, it's within your price range, New, you'd have to add $20 or $30 I think. It's a great filter.

[Sean S]

how bout an octave?...Digitech BSW has some filters too...

[EricF]

I really enjoyed the EMMA Discumbobulator when I had it. It's a bit on the subtle side, but the sound is very open and organic (as opposed to harsh and synthy). In a word, I'd say it sounds like "honey" - sweet, sticky, drippy. New they're about $200-ish, but you might be able to find a used one in your budget.

Something a bit more on the wild side might be the Digitech Bass Synth Wah. It has a variety of filter settings, and has one of the best-tracking octave sounds around. They can be found for less than $60 (used) usually...which leaves money for another toy

[Sean S]

or...perhaps a BassBalls is up your alley...

Octave + BassBalls =