C&F UNIVERSAL SYSTEM FOAM are available in many sizes to swap in and out of suitable boxes.
Available for Large, Medium and Small boxes.
There are Streamer, Attractor, Standard, Midge and others variations.
L - Large series (35**) Case size: 197mm x 114mm x 42mm
M - Medium series (23**) Case size: 155mm x 105mm x 40mm
S - Small series (15**) Case size: 130mm x 104mm x 36.5mm