Frame  Purolator F312 frames are produced using post-consumer recycled materials

The unique Monobond pinch frame concept involves a one-piece frame sealed to the media under heat and pressure

This construction feature produces a continuous bond of media to board around the periphery of the frame, eliminating weak corners and air bypass

The use of a high tensile strength polyethylene binder increases the integrity of the seal, allowing the filter to withstand varying temperatures and humidity levels

Media  Purolator F312 filters are manufactured with superior grade fiberglass media to guarantee full depth loading and high dust holding capacity

A computer-controlled manufacturing process assures a uniform gradient density pattern in the media

To enhance filtration capability and prevent migration of finer particles, the filter media has a skin backing and is evenly coated with a gelled adhesive

Purolator's F312 filters perform best in conditions where large quantities of lint and dust are present

The rugged construction makes these filters industry leaders in the high velocity system, prefilter market

Improved aerodynamics reduce restriction to air flow

Safe, easy, fast installation

Larger effective filtering surface area

Frame  Purolator F312 frames are produced using post-consumer recycled materials

The unique Monobond pinch frame concept involves a one-piece frame sealed to the media under heat and pressure

This construction feature produces a continuous bond of media to board around the periphery of the frame, eliminating weak corners and air bypass

The use of a high tensile strength polyethylene binder increases the integrity of the seal, allowing the filter to withstand varying temperatures and humidity levels

Media  Purolator F312 filters are manufactured with superior grade fiberglass media to guarantee full depth loading and high dust holding capacity

A computer-controlled manufacturing process assures a uniform gradient density pattern in the media

To enhance filtration capability and prevent migration of finer particles, the filter media has a skin backing and is evenly coated with a gelled adhesive

Purolator's F312 filters perform best in conditions where large quantities of lint and dust are present

The rugged construction makes these filters industry leaders in the high velocity system, prefilter market

Improved aerodynamics reduce restriction to air flow

Safe, easy, fast installation

Larger effective filtering surface area

Improved Aerodynamics Reduce Restriction to Air Flow

Safe, Easy, Fast Installation

Larger Effective Filtering Surface Area

Wide Selection of Standard Size

Made in USA

Improved aerodynamics reduce restriction to air flow

Safe, easy, fast installation

Larger effective filtering surface area

Wide selection of standard sizes

Made in USA

Improved aerodynamics reduce restriction to air flow

Safe, easy, fast installation

Larger effective filtering surface area

Wide selection of standard sizes

Made in USA

World's first self-cleaning system

Duct mounted

No maintenance

Programmable cleaning cycle with integral alarm contact

The Aprilaire 4330 Scale Control Insert is the component which encases the Water Panel

For Models 600, 600A and 600M

An Aprilaire 4232 Blue orifice is the tiny nylon component which accurately meters the flow of water into your humidifier

It allows a specific amount of water to go into the humidifier unique to the Model numbers 350, 360, 440, 700, 700A, 700M, 760, 760A and 768

The Aprilaire 4004 In-Line Strainer is a tiny strainer that fits in the inlet fitting of the water solenoid valve which allows water to enter your humidifier

It is designed to keep debris from entering the solenoid valve and should be checked periodically

The Aprilaire 4236 Scale Control Insert is the U-shaped component which encases the Water Panel

Use with Water Panel Number 35 and Water Distribution Tray number 4277

For Models 560, 560A, 568, 700 (almond color), 760, 760A and 768

The Aprilaire 4246 Water Distribution Tray distributes water evenly to all portions of the water panel, part number 35

They attach to the u-shaped scale control insert, part number 4236