Manufacturer Part Number: 10055.011818|Filter Type|PanelPleat Type|Filter Efficiency|Media Material|FiberglassFrame Material|ChipboardAir Flow|Maximum Velocity|Particle Capture Efficiency (%)|20Merv Rating|4Nominal Depth (Inch)|1Nominal Depth|1inNominal Width (Inch)|18Nominal Width|18inNominal Height|18inNominal Height (Inch)|18Media Color|Media Area|Section Width|Initial Resistance|Number Of Sections|Number Of Media Plys|Integrated Frame|YesActual Depth (Inch)|3/4Actual Depth|Maximum Air Flow (FPM)|300Actual Width (Inch)|17-7/8Actual Height (Inch)|17-7/8Actual Width|Initial Resistance at FPM (Inches w.g.)|Actual Height|For Use With|Any UnitStandards|UL 900 Class 2Final Resistance at FPM (Inches w.g.)|Capacity|Features|EPP Indicators|Width (Inch)|Maximum Temperature (F) ( - 0 Decimals)|Length (Feet)|Core Type|Arrestance Efficiency (%)|Thickness (Inch)|Final Resistance at FPM (Inches w. g.)|Maximum Termperature (F)|Product Service Code|UNSPSC Code|