Aercology 1B 7036-16, 703616 flame retardant cylindrical dust collector filter replacement. 12.75" OD x 26" Long with an open top and closed bottom. High performance MERV 12 blended media. Guaranteed fit and performance. Flame Retardant Dust Collector Cartridge Filter Replaces AERCOLOGY 1B 7036-16, 703616, 1B703616 High-Efficiency MERV 12 Blended Filter Media 12.74" OD x 26" Long Open/Closed Endcap configuration Mates with 1B 7036-23 Open/Open Filter for CF units Used in AT-1500, AT-3000, CF-1500, CF-3000 100% Guaranteed Fit and Performance Filtra-Systems Ultra-Life dust collector cartridge filters are designed to perform in all dust collection applications. Various filter media options are available including MERV 15 nanofiber ideal for welding fume and smoke, robust MERV 11 spunbond polyester for abrasive applications and traditional MERV 12 cellulose synthetic blend for general applications. *NOTE: Brand names are used for identification purposes only, and are the intellectual property of the OEM. Filters are OEM Replacements manufactured by Filtra-Systems and are not OEM Brand products unless specifically stated as such. Filtra Supply is not related to the OEM.