Description DS-B-10C, MPX-2-01 – Burner Gasket 50319 202028 / 50319-202028 / 50319202028   Other Size Burner Gaskets: For Daystar Models made before 2010 use DS-B-10B For Daystar Models Made in 2006 to 2009 use DS-B-10A KBE5S, KBE5L and KBE5L with a high/low switch use KSL-R-06 EPX Model use EPX-2-10   VAL6 is a series of heaters. It is not the model name. We suggest you refer to your manual that came with your machine for correct part number. If you still have questions you can call our service or parts department at 800-846-5157.