23 x 1 16 July 8, 2019 16 32 64 128 23 1 2 x 16 23 1 2 x 16 1 2 frame 23 1 4 x 16 1 2 frame 16 x 23 x 1 air filter 23+1 16 23+- 16 23 x 16 23+1 15
