Extended Surface, Pleated Filter with Process-Controlled Quality MERV 8 • Mechanical efficiency — does not rely on electret charge technology • Self-supporting DuraFlex ® media made from virgin fiber; no wire support needed • Consistent media with controlled fiber size and blend • Available in 1", 2" and 4" models • Environmentally friendly – no dies, no metal, fully incinerable • Patented media, filter design, and manufacturing process. Patents covered under one or more of the following US 6398839 B2; US 6254653 B1; US 6159318; US 6165242; US 6387140 B1 (1" model only) The PerfectPleat HC M8 filter is designed to consistently increase efficiency throughout the service life of the filter. The PerfectPleat HC M8 filter has approximately 25% more media than our standard capacity filter, and is ideal for applications where pleated filters are currently in use and higher performance is desired. They have an initial MERV 8 rating respectively, but the efficiency increases significantly when dust holding begins. PerfectPleat HC M8 filters have distinctive self-supporting characteristics that allow a pleating pattern, which promotes airflow and maximizes dust holding capacity (DHC). Lower pressure drop and higher DHC means reductions in energy consumption and operating costs. Media Pack Sealant Media Pack Structurally Bonded with Hot Melt Pleat Stabilizer Bar Pleat Support Strap DuraFlex ® Self Supporting Media Media Pack Sealant PerfectPleat® HC M8 2″ Filter Construction Superior Design and Construction The perimeter frame is constructed from the highest wet-strength 28 pt. beverage carrier board, securely bonded to the media pack. The 1″ model employs three supporting straps on the air-entering and air-leaving sides of the filter to control pleat spacing and support the media pack in the perimeter frame. Support straps on the air entering side are used in combination with uniquely designed pleat stabilizers on the air-leaving side of the 2″ model to provide additional strength. The support straps and pleat stabilizers ensure integrity against turbulent airflow. The 2″ filter resists crushing and abuse and provides excellent lateral stability for installation in side-access systems. The 4″ model utilizes a two piece die cut frame with integral pleat spacers on the air leaving side. Pleat spacing is controlled by straps bonded to the air entering side and the multiple rows of pleat spacers on the air leaving side. The pleat spacers also ensure the pleats remain open during use, maximizing filter life. DuraFlex ® Media – Patented Media Design Uniform size virgin fibers are assembled in closely controlled blends to create a media that is both self-supporting and consistent in performance. When pleated, DuraFlex media will hold its shape without the wire support characteristic of conventional pleated filters. That means no potential for the formation of rust and safer handling. With the superior resiliency of DuraFlex media and no need for wire support, PerfectPleat HC M8 filters can sustain significant abuse and maintain their shape and pleat spacing. The absence of wire also makes the filter totally incinerable, which can simplify disposal.

Performance Data Pleats Per Lineal Foot Filter 1″ PerfectPleat HC M8 2″ PerfectPleat HC M8 4″ PerfectPleat HC M8 Rated Initial Resistance (in. w.g.) 300 FPM 500 FPM 625 FPM Recommended Final Resistance (in. w.g.) Continuous Operating Temperature Limits Product Information — Standard Sizes Composite Minimum Efficiency Efficiency vs. Particle Size Nominal Sizes (Inches) (W x H x D) Filtration Efficiency (%) Particle Diameter (micrometers) PerfectPleat® and DuraFlex® are registered trademarks of AAF-McQuay Inc. in the U.S. and Canada. 10300 Ormsby Park Place Suite 600 Louisville, Kentucky 40223-6169...