Air Filters and Chemical Filtration

Washable Nylon Mesh Pre-Filter

A lightweight black polyamide mesh panel that captures visible coarse debris while maintaining very low resistance in compact HVAC equipment.

Black Polyamide Monofilament
Very Low Air Resistance
Washable and Reusable
Slim Aluminum Frame

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Product Introduction

The washable nylon mesh pre-filter stretches one or more layers of black polyamide monofilament mesh over a light aluminum or galvanized support frame. The regular woven aperture collects hair, lint, insects and coarse airborne debris without the depth or resistance of a fiber pad. A central support grid prevents the flexible mesh from bowing into the fan or coil. The thin washable panel is especially useful in fan coils, split-system returns and compact air handlers where the filter slot cannot accept a deeper pleated product.

Key Features

Uniform polyamide monofilament apertures provide repeatable coarse screening across the full face.

The open woven structure maintains airflow in shallow filter slots.

Nylon resists abrasion and normal rinsing better than fragile nonwoven screen material.

A light aluminum frame and center grid keep the removable filter flat without excessive weight.

Customer Product Concerns

A nylon screen must remain taut and undamaged after cleaning or its open areas will no longer protect the downstream coil evenly.

A deep fiber pad will not fit the narrow return-air slot in compact equipment.Single- or double-layer nylon mesh provides coarse screening in a 10-21 mm frame.

Flexible mesh bows toward the fan and rubs moving components.A rigid perimeter and central wire support hold the woven screen in its intended plane.

Brushing stretches the monofilament openings and reduces capture uniformity.Gentle water rinsing removes dust without mechanically enlarging the woven apertures.

The wet filter is reinstalled and immediately attracts a dense surface cake.The thin mesh drains rapidly and is allowed to dry fully before returning to the unit.

Typical Applications

Fan-coil return-air grillesSplit and cassette air conditionersCompact air-handling unitsEquipment cooling-air screensCoarse pre-screening before deeper filters

Technical Parameters

Typical construction ranges for a washable nylon mesh pre-filter are shown below.

Core Material	Woven PA6 or PA66 black nylon monofilament mesh, single or double layer
Panel Thickness	10, 21 or 46 mm nominal frame depth
Effective Width	290-595 mm standard face width
Maximum Length	Up to 1200 mm with a central support grid
Steel Facing Thickness	0.50-0.80 mm galvanized support grid where used
Core Density	Approximately 1130-1150 kg/m³ for the solid polyamide monofilament
Thermal Conductivity	Approximately 0.23-0.29 W/(m·K) for PA6 or PA66 nylon
Surface Finish	Black woven nylon mesh with mill-finish or anodized aluminum frame
Joint Type	Mesh tensioned and clamped between removable retainers in a slim metal frame
Customization	Available based on the intended application and operating environment.

Available Options

Single- or double-layer mesh10 mm, 21 mm or 46 mm frame depthAluminum, galvanized or plastic frameCustom aperture and center-support pattern

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