Pentair Quad 80 DE Replacement Filter Cartridge, Part Number 178655Z, for Crystal Clear Pool Water.
Top and bottom view of Pentair 178655Z filter cartridge showing blue reinforced end caps and filter media.
Close-up of the genuine Pentair 178655Z part number stamped on the filter cartridge end cap for authenticity.
Dimensional diagram for Pentair Quad 80 DE filter; note that four 178655Z cartridges are required for a full system replacement.

Pentair Quad 80 DE Filter Replacement Cartridge | SKU 178655Z

$150.50
$150.50
Share
Product Description

Crystal Clear Water with Genuine Pentair Filtration

Maintain peak performance in your pool or spa with the Pentair QUAD 80 Diatomaceous Earth (DE) Replacement Cartridge. This high-capacity element is engineered to provide the superior water clarity of DE filtration with the maintenance ease of a standard cartridge. Designed as a direct replacement for Pentair part 178655Z, it ensures your system runs at maximum efficiency.

Professional-Grade Filtration Performance

  • Micron-Level Clarity: Captures even the smallest particles and debris that standard sand filters miss.
  • High-Flow Design: Specifically optimized for the Quad 80 system to ensure consistent water pressure and flow.
  • Reinforced Core: Features a heavy-duty center core to prevent collapsing under high-pressure conditions.

Durable Construction & Easy Maintenance

  • Premium Filter Media: Made with chemical-resistant, high-grade fabric for a longer lifespan.
  • Simple Installation: Precision-molded end caps allow for a perfect, leak-free fit every time.
  • Rinse and Reuse: Designed for quick cleaning, reducing the frequency of full DE recharges.

Technical Specifications

  • Brand: Pentair
  • Model Compatibility: Quad 80 DE Filter Systems
  • Part Number: 178655Z
  • Weight: Approximately 4.5 lbs
  • Material: High-grade filtration fabric with a reinforced plastic core

Pro Tip: To extend the life of your filtration system and keep your water sparkling, we recommend inspecting and rinsing your cartridges every 3–4 months. Keeping a spare set on hand prevents pool downtime during deep cleaning cycles.

Why Choose Genuine Pentair Parts?

Using authentic Pentair replacements ensures your equipment warranty remains valid and protects your pump from the strain caused by "generic" cartridges that may have poor flow rates. Shop with confidence knowing you are getting the exact specifications required for your Quad 80 system.

WHY SHOP WITH US?

  • Genuine Pentair replacement parts
  • Competitive pricing and fast shipping
  • Expert customer support for pool and spa products
  • Hassle-free returns and satisfaction guarantee