

Maytronics DX4/DX5 Hook Lock for Cartridge – Dolphin Robotic Pool Cleaner 998544
Description
Maytronics DX4/DX5 Hook Lock for Cartridge – Dolphin Robotic Pool Cleaner 9985446
Description:
The Maytronics 9985446 Hook Lock is a genuine replacement part for the cartridge system of select Dolphin robotic pool cleaners. Designed for DX4, DX5, and multiple other Dolphin models, this hook lock ensures your cartridge stays securely in place for optimal filtration and performance.
Key Features:
Genuine Maytronics replacement part
Part Number: 9985446
Compatible with Dolphin DX4, DX5, Deluxe 4/5, Supreme M3, DLX4/DLX5, Endeavor, Triton, Edge, Wave 75, Prowler 820/830, Light Premier, Quest, Apollo Plus, Discovery, Deluxe 5 Trevi, Primal X3, DX3S, DX4S, DX5S, Nautilus, Neptune, Neptune Plus, Atlantis, Advantage Plus, H50
Secures cartridge for reliable filtration
Durable construction for long-lasting use
Easy to install
Shipping & Returns
Shipping: We ship within the continental US only, using USPS, FedEx, and UPS. Enjoy free shipping on all orders with a 1-day processing time. Delivery takes approximately 3-5 business days, and tracking information is emailed once your order ships. Currently, we do not offer international shipping.
Returns: You may return unused and unopened items within 30 days of delivery for a full refund or exchange. Please see our full Returns Policy here.
Warranty
Warranty Assistance:
If the product is past the 30-day return window, we are still willing to assist with warranty claims. Please contact us for more information, and we will help guide you through the warranty process
Real Reviews from Our Customers

Delivering Excellence in Pool Products & Service
Why Choose National Pool Supply?
We’re dedicated to providing only the best pool products, sourced from top brands. At National Pool Supply, your pool’s care is our priority, and we’re here to make your experience effortless.





