AP222 Series High-Purity Polypropylene Housing for 222 Cartridge Water Filtration Systems

The AP222 Series Single Cartridge PP Filter Housing is a compact and economical filtration solution manufactured from 100% high-purity polypropylene (PP) without talc fillers, plasticizers, or color additives. Designed for applications requiring high chemical cleanliness and low extractables, the AP222 housing provides excellent corrosion resistance and reliable filtration performance in demanding industrial environments.

The housing is specifically designed to accommodate standard 10-inch and 20-inch filter cartridges with a 222 double O-ring flat-end connection and a 69 mm outer diameter. Its lightweight construction, excellent chemical compatibility, and easy maintenance make it an ideal choice for food and beverage processing, ultrapure water systems, chemical filtration, and precision manufacturing industries.

Compared with traditional stainless steel filter housings, the AP222 PP filter housing offers outstanding resistance to aggressive acids, alkalis, and corrosive solutions while reducing equipment costs and maintenance requirements.

Key Features of AP222 Series PP Filter Housing

1. Manufactured from 100% High-Purity Polypropylene

The housing is molded from pure polypropylene material without fillers or plasticizers, ensuring:

· Low extractables

· High chemical purity

· Reduced contamination risk

· Excellent safety for critical filtration processes

This makes the AP222 housing particularly suitable for high-purity water, food-grade liquids, and sensitive chemical applications.

2. Designed for Standard 222 Cartridge Connection

The AP222 Series is compatible with:

· 10-inch filter cartridges

· 20-inch filter cartridges

· 222 double O-ring flat-end cartridges

· Ø69 mm outer diameter filter cartridges

This standardized design allows easy cartridge sourcing and flexible filtration system integration.

3. Reliable Double O-Ring Sealing Design

The housing utilizes a 222 double O-ring sealing mechanism to provide:

· Secure cartridge positioning

· Effective bypass prevention

· Stable filtration efficiency

· Improved operational reliability

The sealing system helps ensure that all process fluid passes through the filter media for maximum filtration performance.

4. Excellent Chemical Resistance

Polypropylene naturally offers superior resistance against a wide range of chemicals, including:

· Acids

· Alkalis

· Salt solutions

· Process chemicals

· Cleaning agents

This makes the AP222 housing a preferred choice for corrosive liquid filtration applications where metal housings may experience corrosion or contamination issues.

5. Compact Structure and Easy Maintenance

The lightweight housing design allows:

· Fast cartridge replacement

· Simple installation

· Reduced maintenance downtime

· Lower operating costs

Its user-friendly structure helps improve filtration system efficiency and maintenance productivity.

Selection Table

Product Structure Diagram

Typical Applications

Food & Beverage Processing

Used for filtration of:

· Process water

· Syrups

· Ingredients

· Beverage production lines

The high-purity polypropylene construction helps maintain product quality and hygiene standards.

Ultrapure Water and Process Water Systems

Suitable for:

· RO pretreatment

· DI water systems

· Ultrapure water production

· Laboratory water filtration

Its low extractables characteristics support high water purity requirements.

Chemical and Solvent Filtration

Widely used in:

· Chemical manufacturing

· Solvent recovery systems

· Acid and alkali filtration

· Specialty chemical production

The excellent chemical compatibility ensures long service life under aggressive operating conditions.

Paints, Coatings and Ink Filtration

Ideal for removing contaminants from:

· Paint formulations

· Coating chemicals

· Printing inks

· Surface treatment solutions

Helping improve product consistency and equipment protection.

Machinery Manufacturing and Coolant Filtration

Applied in:

· Cutting fluid filtration

· Coolant circulation systems

· Lubrication systems

· Equipment protection applications

Reducing particulate contamination and extending equipment life.

Electronics and Precision Manufacturing

Suitable for filtration requirements in:

· Semiconductor production

· Electronic chemicals

· Precision cleaning processes

· High-purity manufacturing environments

Where contamination control is critical.

Why Choose a Polypropylene Filter Housing?

Many industrial processes involve corrosive liquids that can shorten the lifespan of traditional metal filter housings. Polypropylene filter housings provide several advantages:

· Corrosion-resistant construction

· Lower equipment cost

· Lightweight installation

· Excellent chemical compatibility

· Reduced maintenance requirements

· Suitable for high-purity applications

For many chemical and water treatment applications, PP filter housings offer an ideal balance of performance and cost-effectiveness.

Frequently Asked Questions (FAQ)

Q1: What filter cartridges are compatible with the AP222 housing?

The AP222 Series is designed for standard 10-inch and 20-inch filter cartridges featuring a 222 double O-ring flat-end connection and a 69 mm outer diameter.

Q2: Is the AP222 housing suitable for corrosive chemicals?

Yes. The housing is manufactured from high-purity polypropylene, offering excellent resistance to most acids, alkalis, salts, and chemical solutions commonly used in industrial processes.

Q3: Can the AP222 housing be used for food and beverage applications?

Yes. Its low extractables and high-purity polypropylene construction make it suitable for many food, beverage, and process water filtration applications.

Q4: What are the advantages of PP filter housings compared with stainless steel housings?

PP filter housings offer superior corrosion resistance, lower weight, lower cost, and excellent compatibility with aggressive chemicals, making them ideal for many industrial liquid filtration applications.

Q5: Is cartridge replacement easy?

Yes. The compact design allows quick cartridge replacement and simple maintenance, helping reduce system downtime and labor costs.

Looking for a Housing Compatible with 226 Cartridges?

In addition to the AP222 Series, AAL Filter also offers the AP226 Series Single Cartridge PP Filter Housing, specifically designed for 226 flat-end double O-ring filter cartridges.

Compatible with both Ø69 mm and Ø83 mm cartridge diameters, the AP226 Series provides reliable sealing performance and stable filtration efficiency for high-purity water, chemical processing, and industrial liquid filtration applications.

Learn More: AP226 Series Single Cartridge PP Filter Housing 

AALFilter AP222 Series – Reliable High-Purity PP Filtration Solutions

The AALFilter AP222 Series Single Cartridge PP Filter Housing is engineered to provide reliable, cost-effective, and contamination-free liquid filtration for industrial and process applications. Manufactured from 100% high-purity polypropylene, it delivers excellent chemical resistance, secure cartridge sealing, and easy maintenance for a wide range of filtration systems.

Whether you are filtering ultrapure water, food ingredients, chemicals, solvents, paints, or industrial process fluids, the AP222 housing offers dependable performance and long-term operational value.

Contact us AALFilter today to request product datasheets, technical specifications, pricing information, or customized filtration solutions.

Our filtration specialists are ready to help you select the most suitable PP filter housing and filter cartridge combination for your application.