Maytronics Dolphin Ultra Fine Cartridge Filter | 9991432-R4
Maytronics
SKU: 9991432-R4
Maytronics 9991432-R4 Ultra-Fine Debris Filter Panels (4 Pack, Large/Spring-Style) for Dolphin Robotic Pool Cleaners | Genuine Replacement
The Maytronics 9991432-R4 is a genuine Dolphin ultra-fine debris filter panel kit that includes 4 replacement filter panels. These are commonly listed as large spring-style ultra-fine filter panels used in compatible Dolphin robotic pool cleaners to capture very small debris such as dust, silt, sand, and algae.
Key Features
- Part number: 9991432-R4
- Brand: Maytronics (Dolphin genuine part)
- Product type: Ultra-fine debris replacement filter panels / cartridge panels
- Quantity: 4 panels (4-pack)
- Filter type: Ultra-fine debris filtration (panel-style)
- Style: Large spring-style cartridge panels (commonly listed)
- Maytronics certified genuine replacement part
- Commonly listed warranty: 1 year (listing/manufacturer dependent)
- Manufacturer recommendation commonly listed: Replace after about 200 hours of use
What This Part Does
- Replaces worn, damaged, or clogged filter panels in compatible Dolphin cleaners
- Captures ultra-fine debris for improved water clarity
- Helps maintain filtration performance 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 4-panel cartridge cleaner platforms
- Frequently referenced compatible models include: M200, M400, M500, Sigma, Nautilus CC Plus, Nautilus CC Supreme, Oasis Z5 / Z5i, Triton Plus, Wave 60 / 65 / 80 / 90, and select C-series / Supreme variants (model/version dependent)
- Not commonly listed for: older Nautilus, Nautilus CC (non-Plus), Triton, Triton PS, and Triton PS Plus (verify exact model before ordering)
- Always verify your exact cleaner model and existing filter panel part number before ordering
Important Notes
- This is the ultra-fine panel set (finer than the 9991433-R4 fine panel set).
- Ultra-fine panels may load up faster in heavy leaf debris conditions than fine/coarse panels.
- Best for small particles like dust, sand, silt, and algae.
- Confirm your cleaner uses the large 4-panel cartridge system compatible with part 9991432-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 9991432-R4 Ultra-Fine Filter Panels (Search)
- Maytronics 9991433-R4 Fine Filter Panels (Search)
- Dolphin Filter Panels & Cartridges (Search)
- Dolphin Nautilus CC Plus Parts (Search)
- Dolphin Wave Parts (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: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
