Maytronics Spring Cartridge M4/M5 Filter Panels 4-Pack | 9991433-R4
Maytronics
SKU: 9991433-R4
Maytronics 9991433-R4 Fine Debris Filter Panels (4 Pack, Large/Spring-Style) for Dolphin Robotic Pool Cleaners | Genuine Replacement
The Maytronics 9991433-R4 is a genuine Dolphin fine debris filter panel kit that includes 4 replacement filter panels. These are commonly listed as large spring-style fine filter panels used in compatible Dolphin robotic pool cleaners to capture fine debris while maintaining good water flow.
Key Features
- Part number: 9991433-R4
- Brand: Maytronics (Dolphin genuine part)
- Product type: Fine debris replacement filter panels / cartridge panels
- Quantity: 4 panels (4-pack)
- Filter type: Fine debris filtration (panel-style)
- Style: Large spring-style cartridge panels (commonly listed)
- Maytronics certified genuine replacement part
- Commonly listed warranty: 1 year (seller/manufacturer listing dependent)
What This Part Does
- Replaces worn, damaged, or clogged filter panels in compatible Dolphin cleaners
- Captures fine debris to help improve water clarity and cleaner performance
- Supports consistent filtration and debris retention during cleaning cycles
- Provides removable/rinseable panels for routine maintenance
Common Compatibility Notes (Verify Before Ordering)
- Commonly used on select Dolphin large cartridge-panel cleaner platforms
- Maytronics global listings commonly reference compatibility with models such as Dolphin Sigma, M400, M500, Wave 60, Wave 80, Nautilus CC Supreme, and Nautilus CC Plus (model/version dependent)
- Retailer listings also commonly reference additional compatible models/variants such as M200, M4/M5, C3/C4, Triton Plus (older versions), and some branded equivalents
- Always verify your exact cleaner model and existing filter panel part number before ordering
Important Notes
- This is the fine debris panel set (not ultra-fine). Choose filter grade based on your debris conditions.
- Fine panels generally balance debris capture and flow better than ultra-fine options in heavier debris conditions.
- Confirm your cleaner uses the large 4-panel cartridge system compatible with part 9991433-R4.
Use & Care Notes
- Install all 4 panels correctly in the filter basket/frame according to your cleaner manual.
- Rinse thoroughly after each cleaning cycle to remove trapped debris.
- Do not allow debris to dry and harden in the filter media.
- Inspect panel frames and filter surfaces regularly for cracks, wear, or deformation.
- Keep a spare clean set available for faster turnaround during peak season.
Related Products (Aqua Pool Supply)
- Maytronics 9991433-R4 Fine Filter Panels (Search)
- Dolphin Filter Panels & Cartridges (Search)
- Dolphin Nautilus CC Plus Parts (Search)
- Dolphin Wave 60 Parts (Search)
- Robotic Cleaner Filter Cleaning Supplies (Search)
Maintenance Tips
- Rinse panels immediately after use to prevent debris buildup and reduced flow.
- Rotate between two panel sets to reduce downtime and extend filter life.
- Inspect for debris bypass and confirm panels are seated properly if dirt returns to the pool.
- Replace panels when media becomes damaged or filtration performance drops noticeably.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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