Maytronics Dolphin 4-3/8" Cartridge w/ Bottom Lid (9991412-ASSY)

Cleaners & Parts
Maytronics
9991412-ASSY
87-111-1138
COMPARE AT $162.25
OUR PRICE $129.80
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A cartridge assembly helps capture debris inside a compatible robotic cleaner, and this Maytronics Dolphin version includes a bottom lid with a 4-3/8 inch format using the 9991412-ASSY reference. Cartridge-style filter components are important because they influence how effectively the cleaner can trap debris and maintain water flow through the unit.

This assembly has practical value because it combines the cartridge with the bottom lid, giving the replacement a more complete ready-to-install format. A properly matched Maytronics cartridge assembly helps support cleaner debris handling and contributes to more dependable routine cleaning results.

This type of part is especially useful when the original cartridge assembly is damaged, worn, or no longer sealing and fitting the way it should. That helps restore the cleaner without forcing replacement of unrelated components.

Installed in the proper application, this cartridge assembly helps support cleaner filtration performance and more dependable overall maintenance results.

  • 4-3/8 inch cartridge assembly with bottom lid for compatible Maytronics Dolphin applications
  • Helps capture debris during robotic cleaner operation
  • Useful when replacing a worn or damaged filter cartridge assembly
  • Supports dependable filtration and cleaner performance
  • Improves maintenance results 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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