Comparison : |
Item # FT-377P-600, Big Boy FT Series 6"-14" Flange Inlet Filters Item # FT-377P-600F, Big Boy FT Series 6"-14" Flange Inlet Filters Item # FT-377P-800F, Big Boy FT Series 6"-14" Flange Inlet Filters Item # FT-385P-800F, Big Boy FT Series 6"-14" Flange Inlet Filters Item # FT-485P-800F, Big Boy FT Series 6"-14" Flange Inlet Filters
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