No info about availability.
Dual Passive Low Pass Gate
this is a DIY Dual Passive Low Pass Gate made by me
the lower PLPG has an additional CV input which opens another capacitor circuit, but it doesn't work that well
Included in 4 Racks, 4 are public:
Herzlich Labs Dual Low Pass Gate -
kNoB technology DPLPG - Three-mode Dual
Meng Qi Music Meng Qi DPLPG (Dual
Takaab 2LPG - Dual Passive Low Pass
Abyss Devices LPG