The Harmony Gasket for Round Orbix Hatch is the replacement interior lid gasket for the Harmony Oval Orbix Hatch lid. No tools required, fits into the groove on the underside of the hatch lid.
I recently purchased a used 2010' Pungo which was missing the rear hatch gasket. This one dropped right in without any trimming/fitting. Works as designed although these hatch's are not 100% water tight anyway. A bit pricy for 3' of foam strip but it was worth the $ to get the boat back to spec. Still, I may purchase another to keep as a spare since I havve several other Wilderness Systems Kayays that use the same hatch.