IS A PRIMARY AIR FILTER FOR AF26351
USES HOUSING AH19482 OptiAir 500 Series with Twist Lock, Straight Outlet, Primary and Safety.
USES HOUSING AH19483 OptiAir 500 Series Air Housing Systems. 5 plastic, w/o safety, straight.
USES HOUSING AH19486 OptiAir 500 Series with Twist Lock, 90 Degree Elbow, Primary and Safety.
USES HOUSING AH19487 OptiAir 500 Series Air Housing Systems. 5 plastic, w/o safety, 90 elbow.