Dual stage foam: Two different pore sizes create more trapping area for even the smallest dust particles
Flame laminated foam: Both “stages” are not glued, but heat sealed to provide maximum air flow
Reticulated foam: Increases dirt stopping surface area and increase foam strength
Strongest glue seams will withstand harsh solvents and gas (although we can’t understand why you’d want to use them). Pull as hard as you can, foam will rip before the glued seam will
Light color foam easier to spot where the filter oil has covered and where it has not
OEM size for more dirt stopping capability
Handmade
Every square inch of each filter is and inspected for quality
One year warranty
Made in the USA, not a cheap Chinese throw away

Fitment
2012 Husqvarna TC 310
2002 Husqvarna TC 250
2003 Husqvarna TC 250
2004 Husqvarna TC 250
2005 Husqvarna TC 250
2006 Husqvarna TC 250
2007 Husqvarna TC 250
2008 Husqvarna TC 250
2009 Husqvarna TC 250
2010 Husqvarna TC 250
2011 Husqvarna TC 250
2012 Husqvarna TC 250
2002 Husqvarna TE 250
2003 Husqvarna TE 250
2004 Husqvarna TE 250
2005 Husqvarna TE 250
2006 Husqvarna TE 250
2007 Husqvarna TE 250
2008 Husqvarna TE 250
2009 Husqvarna TE 250
2010 Husqvarna TE 250
2011 Husqvarna TE 250
2012 Husqvarna TE 250
2009 Husqvarna Te 310
2010 Husqvarna Te 310
2011 Husqvarna Te 310
2012 Husqvarna Te 310
2003 Husqvarna Te 510
2004 Husqvarna Te 510
2005 Husqvarna Te 510
2006 Husqvarna Te 510
2007 Husqvarna Te 510
2008 Husqvarna Te 510
2009 Husqvarna Te 510
2010 Husqvarna Te 510
2013 Husqvarna TE 250
2008 Husqvarna Te 310