Impinger VM-SM-HAZ 1075-01 FLT: Mist X Impinger 24X24X3 Fit for: VM Series HM SM-12 1075-02 FLT: 3x12x24 Mist X Impinger Fit for: VM Series HM SM-12 VM-SM-HM H10015-01 4″ Chevron Impinger Assembly 4X24X24 Large Fit for: VM HM SM V40028-01 Small Aluminum Chevron Impinger Pre-filter 4 x 12 x 24 Complete Assembly Fit for: VM HM SM