Product Overview

The Pentair 178578 Clean & Clear Plus Tank Bottom Assembly is a genuine OEM replacement lower tank body designed for compatible Pentair Clean & Clear Plus cartridge filters. This almond-colored tank bottom is used when the original lower tank assembly is cracked, damaged, leaking, or no longer sealing properly with the upper tank assembly.

This part is a major filter body replacement component and is designed to restore the lower tank section of compatible Clean & Clear Plus filters without replacing the entire filter system.

Ideal For

Pool service professionals and pool owners repairing compatible Pentair Clean & Clear Plus cartridge filters with a damaged or leaking lower tank assembly.

Key Features

• Genuine Pentair OEM replacement part
• Part number 178578
• Replacement tank bottom assembly
• Almond color
• Designed for compatible Clean & Clear Plus cartridge filters
• Helps repair cracked, leaking, or damaged lower filter tanks
• Used with cartridge filter systems
• Heavy-duty filter tank body component
• Professional installation recommended

Benefits

The Pentair 178578 Tank Bottom Assembly allows compatible Clean & Clear Plus filters to be repaired when the lower tank body is damaged but the remaining filter components are still usable. Replacing the lower tank assembly can help restore proper sealing, pressure containment, and filtration operation.

Using the correct OEM Pentair tank component helps maintain proper fitment with the upper tank, clamp assembly, internal parts, drain assembly, cartridges, and plumbing connections.

Specifications

Confirm Before Ordering

Please confirm the filter model number, square footage, tank size, clamp style, internal parts, and parts diagram before ordering. Clean & Clear Plus filters are available in multiple sizes, and tank body components may vary by model and production date.

This is a replacement tank bottom assembly only. It does not include the complete filter, cartridges, upper tank assembly, clamp assembly, pressure gauge, or plumbing connections unless specifically shown with the item.

Customer-Facing Q&A

Is this a complete filter?
No. This is the lower tank bottom assembly only. It is not a complete filter system.

Does this include the cartridges?
No. Cartridge elements are not included.

Does this include the clamp assembly?
No. The clamp assembly is not included unless specifically shown with the product.

What color is this tank bottom?
This tank bottom assembly is almond.

Which filter series does this fit?
This part is designed for compatible Pentair Clean & Clear Plus cartridge filters. Confirm your exact filter model and parts diagram before ordering.

Can this fix a leaking filter tank?
If the lower tank body is cracked or damaged, replacing it with the correct tank bottom assembly may restore proper sealing and safe operation. Always inspect the full filter assembly before repair.

Should this be professionally installed?
Yes. Filter tank repairs should be completed by a qualified pool professional to ensure proper sealing, clamp installation, pressure testing, and safe operation.