Maytronics Dolphin Supreme M4 Cartridge Locking Hook (9980731)

Cleaners & Parts
Maytronics
9980731
87-111-1446
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A cartridge locking hook helps secure a compatible cleaner cartridge in its intended position, and this Maytronics Dolphin Supreme M4 version uses the 9980731 reference. Retention parts like this are useful because filtration performance depends not only on the cartridge itself but also on how securely it is held in place.

This part has practical value because a damaged or missing locking hook can make an otherwise good cartridge less reliable in service. A properly selected Maytronics replacement helps preserve original filtration-system retention and contributes to a more complete and more dependable repair.

This type of part is especially useful when the original hook has cracked, loosened, or stopped holding the cartridge correctly. That helps keep the repair targeted while restoring proper filtration support.

Installed in the proper application, this locking hook helps support cleaner cartridge retention and more dependable filter-system performance.

  • Cartridge locking hook for compatible Maytronics Dolphin Supreme M4 cleaner applications
  • Helps secure the filter cartridge in position
  • Useful when replacing a broken or missing retention hook
  • Supports dependable filtration-system performance
  • Improves repair completeness and service confidence
Maytronics – Dolphin Robotic Pool Cleaners, Parts and Pool Cleaning Systems
Who is Maytronics?

Maytronics is a global leader in robotic pool cleaning technology, best known for its industry-leading Dolphin® robotic pool cleaners. Founded in 1983, Maytronics has built a reputation for innovation, reliability, and performance, helping pool owners automate cleaning and maintenance. Their products are widely used in both residential and commercial pools to deliver consistent, hands-free cleaning results.

What products does Maytronics specialize in?

Maytronics specializes in robotic pool cleaners, replacement parts, and cleaning accessories. Their product lineup includes Dolphin® automatic pool cleaners, cleaner motors, power supplies, cables, filters, brushes, and drive systems. These cleaners use advanced navigation technology, powerful suction, and built-in filtration to remove debris, dirt, and algae from pool floors, walls, and waterlines.

Why choose Maytronics parts for your pool or spa?

Maytronics products are known for efficiency, convenience, and superior cleaning performance. Their robotic cleaners operate independently of the pool’s filtration system, reducing strain on pumps and filters while lowering energy consumption. Pool owners and professionals choose Maytronics for dependable, low-maintenance cleaning solutions that save time and improve water clarity.

How do you identify and choose the correct Maytronics part?

To select the correct Maytronics component, it’s important to match your Dolphin cleaner model, part number, and system configuration. Components such as filters, cables, and motors vary by model, so verifying compatibility ensures proper performance. Choosing the right part helps maintain optimal cleaning efficiency and extends the life of your robotic cleaner.

Need help finding the right Maytronics part?

At Bath & Spa Parts Online, we carry a wide selection of Maytronics pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.

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