It is made using a special mesh which I guess is cheaper to produce than ITG's foam. They are both great filters and I may buy a green as a backup for when I clean my itg.
2 Sundown X10's in 2.5cuft Net tuned to 31.65hz
SKAR SK-1500.1d, SKAR SK-85.4
Lots of Audio Technix 0 gauge
XS Power 1200,XS Power XP3000
I murder lowssss