P163419 Cellulose, Efficiency Beta 2: 7 micron, Efficiency Beta 200: 19 micron, Efficiency Beta 1000: 23 micron
P163542 Synteq XP, Efficiency Beta 2:
4 micron, Efficiency Beta 1000:
11 micron
P164381 Synthetic, Efficiency Beta 2: 7 micron, Efficiency Beta 1000: 23 micron
P165335 Synthetic, Efficiency Beta 2: 14 micron, Efficiency Beta 1000: 50 micron
P165354 Synteq XP, Efficiency Beta 2: 4 micron, Efficiency Beta 1000: 6 micron