Wellis OEM Spa Filter with Coarse Thread – AKU3000

Genuine Wellis OEM Spa Filter with Coarse-Thread Connection

Maintain proper water circulation and filtration with the genuine Wellis AKU3000 replacement filter. This OEM cartridge features white pleated filter media, a convenient removal handle and the specialized coarse-thread connection used in select Wellis hot tubs and swim spas.

The AKU3000 has a nominal filter-body size of approximately 6.9 inches tall by 6 inches in diameter. Its slotted 1½-inch SAE male thread is an important part of the fit and must match the connection on your current filter.

This genuine Wellis filter replaces the earlier Wellis AKU1609 cartridge.

Package includes one OEM Wellis filter cartridge.

🔹 Key Benefits

• Genuine OEM Wellis replacement filter
• White pleated filtration media
• Helps capture dirt, oils, debris and other contaminants
• Supports proper circulation and filtration performance
• Closed top with an integrated removal handle
• Specialized slotted coarse-thread connection
• Approximately 45 square feet of filtration media
• Washable and reusable with proper maintenance
• Direct replacement for Wellis AKU3000
• Replaces the earlier Wellis AKU1609 cartridge

🔍 Compatible Wellis Hot Tubs

The AKU3000 is listed for use in compatible filtration systems found in select versions of the following Wellis spas:

• Wellis Venus
• Wellis Saturn
• Wellis Pluto
• Wellis Pluto Plug & Play
• Wellis Mars
• Wellis Mars Plug & Play
• Wellis Mars Camargue
• Wellis Spirit Camargue
• Wellis Spirit Camargue Standard

Compatible Wellis Swim Spas

Wellis also lists the AKU3000 for compatible filtration systems in select versions of these swim spas:

• Wellis Amazonas Turbine 2019
• Wellis Amazonas W-Flow 2019
• Wellis Rio Grande Turbine
• Wellis Danube Turbine

Wellis has used different filter configurations within certain models and production years. Do not order by spa model alone. Confirm the filter number, measurements and coarse-thread connection before purchasing.

📏 Confirm Your Filter Before Ordering

Your existing filter should match the following characteristics:

• Wellis filter number AKU3000 or earlier AKU1609
• White pleated cylindrical filter media
• Nominal filter-body height of approximately 175 mm or 6.9 inches
• Outside diameter of approximately 152 mm or 6 inches
• Closed top with an integrated removal handle
• Approximately 1½-inch SAE male coarse thread
• Alignment slot in the threaded connector
• Same overall end-cap and mounting configuration

Do not substitute a fine-thread filter simply because its height and diameter appear similar. The thread style and alignment slot must match.

If you are uncertain, contact Southern Leisure with pictures of the top and bottom 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. Use the integrated handle to carefully unscrew the existing filter.
4. Clean any loose debris from the filter compartment.
5. Remove all protective packaging from the new filter.
6. Inspect the coarse-thread connector and alignment slot.
7. Position the filter over the matching connection in the filter housing.
8. Thread the filter gently into place by hand.
9. Do not force, cross-thread or overtighten the cartridge.
10. Reinstall the filter cover or access assembly.
11. Restore power and confirm normal water circulation.

💬 Southern Leisure Says

Matching the Wellis filter number and thread style is the most dependable way to identify this cartridge. If your existing filter is marked AKU3000 or AKU1609 and has the same slotted coarse-thread connection, this is the proper OEM replacement.

The AKU3000 and AKU3001 use the same coarse-thread fitment. The AKU3000 has white standard filter media, while the AKU3001 uses blue antimicrobial media. Do not confuse either one with the fine-thread AKU3002 or AKU3003 filters.

🧼 Care & Maintenance

• Inspect and rinse the filter regularly during normal spa use.
• Rinse carefully between each pleat with a garden hose.
• Clean more frequently during periods of heavy use.
• Use a dedicated spa cartridge cleaner to remove oils and residue.
• Follow the cleaner’s directions and rinse the cartridge thoroughly.
• Do not use a pressure washer, stiff brush or sharp cleaning tool.
• Maintain balanced water chemistry to support filter 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: OEM pleated spa filter cartridge
• Manufacturer number: AKU3000
• Replaces: Wellis AKU1609
• Nominal filtration area: Approximately 45 sq. ft.
• Filter-body height: Approximately 6.9 inches
• Outside diameter: Approximately 6 inches
• Top: Closed with removal handle
• Bottom connection: Slotted 1½-inch SAE coarse male thread
• Filter-media color: White
• Package quantity: One filter
• OEM product: Yes

⚙️ Specifications

Manufacturer	Wellis
Manufacturer Number	AKU3000
Previous Wellis Number	AKU1609
Filter Type	White pleated cartridge filter
Nominal Filtration Area	Approximately 45 sq. ft.
Nominal Filter-Body Height	Approximately 175 mm or 6.9 inches
Outside Diameter	Approximately 152 mm or 6 inches
Top Configuration	Closed with integrated removal handle
Bottom Connection	Approximately 1½-inch SAE male coarse thread with alignment slot
Filter-Media Color	White
Package Quantity	One filter cartridge
OEM Product	Yes

❓ Frequently Asked Questions

Is this a genuine Wellis filter?

Yes. This is a genuine OEM Wellis filter cartridge with manufacturer number AKU3000.

Does the AKU3000 replace AKU1609?

Yes. The Wellis AKU3000 is the replacement for the earlier AKU1609 cartridge. Confirm the dimensions and specialized coarse-thread connection before ordering.

What is the difference between AKU3000 and AKU3001?

The two filters share the same general dimensions and coarse-thread fitment. The AKU3000 uses white standard filter media, while the AKU3001 uses blue antimicrobial filter media.

Will an AKU3002 or AKU3003 fit instead?

No. The AKU3002 and AKU3003 use a fine-thread connection. They should not be substituted for the coarse-thread AKU3000 unless Wellis has specifically confirmed compatibility with your filtration system.

Will this fit every Wellis spa?

No. Wellis uses multiple filter sizes and connection styles. Confirm the AKU3000 or AKU1609 number, physical dimensions and slotted coarse-thread connection before ordering.

How many filters are included?

This listing includes one genuine Wellis filter cartridge.

Can this filter be cleaned?

Yes. Rinse carefully between the pleats with a garden hose and periodically use a dedicated spa cartridge cleaner. Thoroughly rinse away all cleaning solution before reinstalling the filter.

When should the filter be replaced?

Replace the cartridge when the pleats become torn, collapsed or permanently restricted, or when proper water flow cannot be restored through cleaning. Actual service life depends on spa usage, water chemistry and maintenance.

🛡️ Why Buy From Southern Leisure?

• Genuine OEM Wellis replacement part
• Compatibility assistance from experienced spa professionals
• Help identifying the correct thread style 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, handle and threaded connector upon arrival
• Keep the filter clean and protected until installation
• Confirm compatibility before installing or wetting the filter