What is the average arrestance rate?

The average arrestance is 92% according to ASHRAE 52.2-1992.

How long is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

4", 2"&1" Pleated Pre Panel Filter

Name: 4", 2"&1" Pleated Pre Panel Filter
Brand: Shanghai Thenow Purification Technology Co., Ltd.
SKU: 812808515

Shanghai, ChinaShanghai Thenow Purification Technology Co., Ltd.

US$4.75

1 Piece

Product profile

Customization

Available

Material

Polyester

Medium Material

Synthetic Fiber

Model NO.

THN-BS

Cartridge Filter

Synthetic Fiber

Filter Bag Filter

The Filter Type

Type

Panel Filter

Usage

Dust Filter, Liquid Filter, Air Filter, Industrial Filter Cartridge

Filtration Grade

PRE Filter

Filter Bag Sectional Shape

Flatbag

Filter Bag Environment

Temperature

Cartridge Installation

Flange Mounting

Item

Disposable Panel Filter,Coarse Filter

Frame

Water Resistant Cardboard

Filter Media

Polyester,Polycotton,Synthetic Fiber

Face Net

Spot Mesh,Expanded Mesh

Transport Package

Standard Export Carton

Specification

ISO9000; CE

Trademark

Thenow

Origin

Shanghai, China

HS Code

84219990

Production Capacity

8000PCS/Month

Key features

Wide Depth Options: Available in 23mm, 44mm, and 95mm depths to suit various airflow requirements.

High Efficiency Grades: Offers G3-G4 EN779 and MERV5-8 ASHRAE ratings for effective dust and particle filtration.

Water Resistant Frame: Constructed with water-resistant cardboard frames for durability in humid environments.

Self-Supporting Design: Made without metal components, making the filter fully incinerable and safe for disposal.

Low Pressure Drop: Engineered with low pressure drop media to ensure energy-efficient airflow performance.

Moisture Resistance: Designed to handle 100% relative humidity conditions without degradation.

OEM/ODM Services: Customization available for frame, media, and net types including spot mesh and expanded mesh.

Company profile

Shanghai Thenow Purification Technology Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2007-01-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.37h CertifiedTerms of Payment: LC, T/T, Western Union, etc.

AI-Powered supplier vetting

SummaryShanghai Thenow Purification Technology Co., Ltd. is a China-based limited company established in 2016, operating from a 9,900 m² Shanghai manufacturing facility with 101 employees. It is described as a wholly owned production unit of Thenow Group, whose broader group history began in 2005 and includes six production units. The supplier manufactures HVAC, industrial air, HEPA, and air filter cartridge products, serving industrial dedusting, gas turbine inlet, and HVAC applications. Evidence indicates established production capacity, with more than 10 production lines, 27 years of combined R&D engineer experience, 11–20 quality-control staff, and broad export-market coverage. ISO 9001, ISO 14001, and ISO 45001 certifications are reported. The supplier states that its products use designed filter media and larger media surfaces to improve contaminant capture and reduce resistance. However, the provided information does not sufficiently establish after-sales support, customization processes, financial...

Supplier typeThe supplier is a Chinese limited company and a wholly owned production unit of Thenow Group. Its stated business is manufacturing air-filtration products for industrial dedusting, gas turbine air-inlet systems, and HVAC systems, with a factory in Shanghai and commercial activity in industrial equipment and machinery.

CertificationsThe supplier reports holding ISO 9001:2015, ISO 14001:2015, and ISO 45001:2016 certificates. These explicitly cover quality, environmental, and occupational-health-and-safety management systems, providing positive evidence for this field.

R&D capabilityThenow Group is described as a specialist in developing and producing filtration systems and solutions, while the supplier reports 27 years of total R&D engineer experience. Its stated product approach uses better-designed filter media and larger media surfaces to improve contaminant capture and maintain lower resistance, supporting an explicit but limited indication of technical innovation.

Production capacityThe supplier operates a 9,900 m² factory with more than 10 production lines and 11–20 quality-control staff. It is part of a group with six production units and manufactures multiple air-filter categories for industrial and HVAC applications, indicating established and comparatively broad production capability.