Ram-Flo Air Filter Application Guide by Neck Diameter 

Available Series

Neck Diameter

Filter Mounting Type
300 400 600 1000

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X X     40.5mm 1 - 19/32" Neck + Clamp
X X     40.5mm 1 - 19/32" Neck + Clamp
X       44mm 1 - 47/64" Neck + Clamp
X       47.6mm 1 - 1/8" Neck + Clamp
X X     50mm 1 - 31/32" Neck + Clamp
X X X   52mm 2 - 1/32" Inverted Neck + Clamp
X       52mm 2 - 1/32" Inverted Neck + Clamp
X X X   52mm 2 - 1/32" Neck + Clamp
X X     52mm 2 - 1/32" Neck + Clamp
  X     52mm 2 - 1/32" Neck + Clamp
X X X   54mm 2 - 1/8" Neck + Clamp
  X     54mm 2 - 1/8" Neck + Clamp
X X X   56.4mm 2 - 7/32" Neck + Clamp
X X X X 58.8mm 2 - 15/16" Neck + Clamp
X       58.8mm 2 - 15/16" Neck + Clamp
X X X   58.8mm 2 - 15/16" Flared Neck
X   X   58.8mm 2 - 15/16" Inverted Neck
  X X X 58.8mm 2 - 15/16" Neck + Bridge + 6mm Bolt
  X X X 58.8mm 2 - 15/16" Inverted Neck + bridge
X X     60mm 2 - 23/64" Neck + Clamp
X       62mm 2 -7/16" Neck + Clamp
X X X X 63mm 2 - 15/32" Neck + Clamp
X X X X 63mm 2 - 15/32" Neck + Bridge + 6mm Bolt
X X X   63mm 2 - 15/32" Neck + Securing Bridge + 8mm Bolt
      X 66.7mm 2 -5/8" Neck + Securing Bridge
X X X X 66.7mm 2 -5/8" Neck + Clamp
X   X   66.7mm 2 -5/8" Inverted Neck + Clamp
X X X   66.7mm 2 -5/8" Flared Neck
    X   66.7mm 2 -5/8" Inverted Neck Offset
X X X   66mm 2 - 19/32" Neck + Clamp
X X X   70mm 2 - 3/4" Neck + Clamp
X X X X 72mm 2 - 7/32" Neck + Securing Bridge + 6mm Bolt
X X X X 72mm 2 - 7/32" Neck + Securing Bridge + 6mm Bolt
X   X   73mm 2 - 7/8" Neck
      X 78mm 3 - 5/64" Neck + Securing Bridge
X   X X 80mm 3 - 9/64" Neck + Clamp
    X   88mm 3 - 15/32" Neck + Securing Bridge
      X 100mm 3 - 15/16" Neck + Securing Bridge
      X 107.1mm 4 - 7/32" Neck + Securing Bridge
      X 130.2mm 5 - 1/8" Neck + Securing Bridge

Please contact us for additional information and pricing of Ram-Flo air filters.