Comparison : Item # 2 Ply 220 3/16 X 1/16 Heat Resistant 400°F, High Heat Resistant - 400°
Item # 3 Ply 330 1/4 X 1/16 Heat Resistant 400°F, High Heat Resistant - 400°
Item # 3 Ply 225 1/8 X Bare Heat Resistant 400°F, High Heat Resistant - 400°
Item # 4 Ply 440 1/4 X 1/16 Heat Resistant 400°F, High Heat Resistant - 400°