Wellis Crystal Micro Plus OEM Antimicrobial Spa Filter – AKU3003

Genuine Wellis Crystal Micro Plus Antimicrobial Spa Filter

Currently on order with Wellis Spas. Please allow 2-3 weeks for fulfillment.

Maintain clean, clear spa water with the genuine Wellis Crystal Micro Plus replacement filter. This OEM filter features blue antimicrobial pleated media designed for compatible Wellis hot tubs equipped with the corresponding fine-thread filtration system.

The AKU3003 measures approximately 6.9 inches tall by 5.8 inches in diameter and provides approximately 3 square meters—or 32 square feet—of filtration media.

This genuine Wellis filter replaces the earlier Wellis AKU0136 cartridge.

Package includes one OEM Wellis filter cartridge.

🔹 Key Benefits

• Genuine OEM Wellis replacement filter
• Crystal Micro Plus antimicrobial filter media
• Helps capture dirt, debris, oils and other contaminants
• Antimicrobial media helps inhibit microbial growth on the filter material
• Approximately 3 m² or 32 sq. ft. of filtration area
• Fine-thread connection for compatible Wellis filter systems
• Washable and reusable with proper maintenance
• Direct replacement for Wellis AKU3003
• Replaces the earlier Wellis AKU0136 filter

Important: Antimicrobial filter media does not sanitize the spa water and does not replace an approved chlorine, bromine or other spa-water sanitation system.

🔍 Compatible Wellis Spas

The AKU3003 is listed for use in compatible versions of the following Wellis spas:

• Wellis Mont Blanc
• Wellis Monte Rosa
• Wellis Libra
• Wellis Taurus
• Wellis Paris Life
• Wellis Everest Life
• Wellis Vienna Life
• Wellis Atlas Life
• Wellis Elbrus Life
• Wellis Kilimanjaro Life
• Wellis Mandala Life
• Wellis Teide Life

Earlier Wellis Spas Using AKU0136

Because the AKU3003 replaces the earlier AKU0136 filter, it may also fit compatible filtration systems in the following earlier Wellis models:

• Wellis Kilimanjaro
• Wellis Everest
• Wellis Elbrus 230
• Wellis Elbrus manufactured before 2018
• Wellis Cancun
• Wellis Triglav
• Wellis Pilatus
• Wellis Ibiza
• Wellis Samoa
• Wellis Borneo
• Wellis Bahama
• Wellis Robinson

Wellis has changed filter configurations during certain model updates. Do not order by spa model alone. Confirm the filter number, physical dimensions and fine-thread connection before purchasing.

📏 Confirm Your Filter Before Ordering

Your current filter should match the following characteristics:

• Wellis filter number AKU3003 or earlier AKU0136
• Approximately 175 mm or 6.9 inches tall
• Approximately 148 mm or 5.8 inches in outside diameter
• Blue pleated cylindrical filter media
• Matching fine-thread connection
• Same overall end-cap and mounting configuration

If you are uncertain, contact Southern Leisure with pictures of your existing filter, its measurements and your spa’s model and year before ordering.

📋 How to Replace

1. Turn off power to the spa at the breaker.
2. Remove the filter cover or access assembly.
3. Carefully unscrew and remove the existing filter cartridge.
4. Clean loose debris from the filter compartment.
5. Remove the protective packaging from the new filter.
6. Do not remove the supporting band from the filter cartridge.
7. Thread the new filter gently into the housing by hand.
8. Do not overtighten the filter.
9. Reinstall the filter cover or access assembly.
10. Restore power and confirm normal water circulation.

💬 Southern Leisure Says

Matching the Wellis part number and thread style is the most dependable way to select this filter. If your existing cartridge is marked AKU3003 or AKU0136 and its dimensions and connection match, this is the proper OEM replacement.

Do not remove the supporting band wrapped around the pleats. It is part of the filter’s construction and helps the cartridge maintain its intended shape during operation.

🧼 Care & Maintenance

• Inspect and rinse the filter weekly during normal spa use.
• Rinse carefully between each pleat with a garden hose.
• Clean more frequently during periods of heavy spa use.
• Use a dedicated spa cartridge cleaner to remove oils and residue.
• Rinse away all cleaning solution before reinstalling the filter.
• Do not use a pressure washer, stiff brush or sharp cleaning tool.
• Do not remove the supporting band from the filter.
• Maintain balanced water chemistry to support filtration performance.
• Replace the filter if the pleats become torn, collapsed or permanently restricted.
• Consider rotating two filters so one can be cleaned and dried thoroughly.

📌 Product Quick Facts

• Brand: Wellis
• Product: Crystal Micro Plus antimicrobial spa filter
• Manufacturer number: AKU3003
• Replaces: Wellis AKU0136
• Filtration area: Approximately 3 m² or 32 sq. ft.
• Height: Approximately 6.9 inches
• Outside diameter: Approximately 5.8 inches
• Connection: Fine thread
• Filter color: Blue
• Package quantity: One filter
• OEM product: Yes

⚙️ Specifications

Manufacturer	Wellis
Manufacturer Number	AKU3003
Previous Wellis Number	AKU0136
Filter Type	Crystal Micro Plus antimicrobial cartridge
Filtration Area	Approximately 3 m² or 32 sq. ft.
Height	Approximately 175 mm or 6.9 inches
Outside Diameter	Approximately 148 mm or 5.8 inches
Connection Type	Fine thread
Filter Media Color	Blue
Package Quantity	One filter cartridge
OEM Product	Yes

❓ Frequently Asked Questions

Is this a genuine Wellis filter?

Yes. This is a genuine OEM Wellis Crystal Micro Plus filter with manufacturer number AKU3003.

Does the AKU3003 replace AKU0136?

Yes. Wellis identifies AKU3003 as the replacement for the earlier AKU0136 filter. Compare the dimensions and fine-thread connection before ordering, especially for older spas.

What does antimicrobial filter media do?

The antimicrobial treatment helps inhibit microbial growth on the filter media itself. It does not sanitize the spa water or replace chlorine, bromine or another approved sanitation system.

Should I remove the band around the filter?

No. Do not remove the supporting band from the filter. The band is part of the cartridge’s construction.

Will this fit every Wellis spa?

No. Wellis uses several filter sizes and connection styles. Confirm the AKU3003 or AKU0136 number, dimensions and fine-thread connection before ordering.

How many filters are included?

This listing includes one genuine Wellis filter cartridge.

How often should the filter be cleaned?

Inspect and rinse the filter weekly. Perform a deeper cleaning periodically with a dedicated spa cartridge cleaner. Heavy spa use may require more frequent cleaning.

When should the filter be replaced?

Replace the cartridge if its pleats become torn, collapsed or permanently restricted, or if normal water flow cannot be restored through proper cleaning.

🛡️ Why Buy From Southern Leisure?

• Genuine OEM Wellis replacement part
• Compatibility assistance from experienced spa professionals
• Help confirming the correct filter before ordering
• Convenient shipping and local pickup options
• Trusted by spa owners since 2013

📦 Shipping & Pickup

• Ships as one OEM Wellis filter cartridge
• Shipping and pickup options are displayed at checkout
• Inspect the cartridge and end caps for shipping damage upon arrival
• Keep the filter clean and protected until installation
• Confirm compatibility before installing or wetting the filter