CX3020DA C3020DA GENUINE Hayward Top Closure Plate Top Manifold for Hayward for SwimClear® C3020 & C4020 Swimming Pool and Spa Cartridge Filters
The Hayward part number for it is CX3020DA and it has a C3020DA Marking on the part itself
Ensure your Hayward SwimClear® cartridge filter continues to deliver crystal-clear pool water with a proper internal seal and alignment using the Hayward CX3020DA Top Closure Plate. This OEM replacement top manifold / closure plate is engineered to restore the structural integrity and performance of your pool’s cartridge filtration system, especially when the original plate shows wear, warping, or cracking over time.
CX3020DA Hayward Top Closure Plate Top Manifold for Hayward for SwimClear® C3020 & C4020 Cartridge Filters Product Overview
The Hayward CX3020DA top closure plate is a precision-molded component that sits at the upper end of the filter’s internal cartridge stack. Its purpose is to secure the cartridge elements, maintain an even seal at the top of the filter tank, and ensure correct alignment with the bottom manifold so water flows through the cartridges as intended. Without a solid top plate, water can bypass the cartridges—reducing efficiency and clarity.
This replacement part is ideal for service technicians and pool owners performing maintenance, rebuilds, or seasonal tune-ups. It’s built to match original Hayward specifications, so you get genuine quality and a perfect fit.
Why This Part Matters
- Maintains Optimal Filtration Performance – Proper cartridge alignment helps water flow evenly through filter media, maximizing debris capture and filtration efficiency.
- Restores Tight Sealing – The closure plate ensures the tank seals correctly at the top, preventing internal bypass and pressure issues
- OEM-Grade Fit & Function – Designed and manufactured to Hayward’s original specifications for reliable compatibility and long-lasting operation
- Easy to Replace – Swaps directly with the worn or damaged original plate during standard filter service or cartridge replacement procedures.
Compatibility
This Hayward CX3020DA top closure plate fits the following Hayward SwimClear® cartridge filter models:
- C3020
- C3025
- C4020
- C4025
Replacing a damaged or deteriorated top plate on these systems helps restore consistent hydraulic flow and extends the life of your cartridge elements.
Features & Specs
- Part Number: CX3020DA
- Application: Top Closure Plate / Top Manifold for cartridge filters
- Compatible Models: C3020, C3025, C4020, C4025 (SwimClear series)
- Construction: Durable molded plastic built for outdoor pool equipment environments
- Service-Ready: Ideal for maintenance, rebuilds, and seasonal servicing cycles
Installation Insight
Before installing, always turn off the pump and relieve system pressure. Remove the clamp band and old closure plate, clean the sealing surfaces, and install the new CX3020DA plate ensuring cartridges are evenly seated. Re-assemble the clamp and start the system, checking pressure and flow to confirm a proper seal.
Please be advised that certain manufacturers - including Pentair® (with their TradeGrade® products), Jandy®/Fluidra® (with their Trade Series Exclusive™ products), and Hayward® (with their Expert Line® products) - do not honor manufacturer warranties on specific product lines purchased online.
These policies are intentionally enforced by the manufacturers to prevent customers from purchasing the same products at lower prices online.
Warranty coverage for these products is generally only available when purchased in person from an authorized local dealer.
While we strive to take care of our customers by offering the lowest possible prices on brand new, genuine products, we do not provide warranty coverage ourselves, nor can we guarantee that the manufacturer will honor the warranty on products purchased from our online store.
It is the buyer’s responsibility to confirm warranty eligibility directly with the manufacturer before making a purchase.
If you are a local customer, you may be able to purchase these items in-store and obtain manufacturer warranty coverage. However, for many of our customers across the country, paying significantly more locally just to access a manufacturer warranty often doesn’t make financial sense, especially when some local suppliers charge considerably higher prices.
By completing your purchase, you acknowledge and agree that we are not responsible for warranty support or claims denied by the manufacturer due to their online sales restrictions.
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