Revitalize your spa or pool’s filtration with the Darlly Spa/Pool Replacement Filter Cartridge [40353], a Waterway Clearwater compatible cartridge designed for 35 sq ft systems. This precise replacement, identified as C-4335, drops straight into your existing housing, delivering dependable filtration without any guesswork. Key specs include an outer diameter of 4-15/16 inches, a length of 9-1/4 inches, and top & bottom end caps that are open at both ends (2-1/8 inches each), ensuring easy installation and filtration performance from day one.
Why this Waterway Clearwater 35 sq ft replacement stands out
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Exact footprint for seamless swaps: Designed to replace Waterway Clearwater 35 sq ft cartridges (C-4335) in compatible 40353 housings, so you can swap without modifying your system.
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Maximum filtration area: With 35 square feet of filtration media, it captures a broad range of particulates—dirt, some oils, and debris—helping to keep your pool or spa water clearer for longer between cleanings.
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Open-ended end caps for easy handling: The end caps are open on both ends, simplifying installation, backwashing, and quick rinses without wrestling with tight seals.
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Durable, system-friendly design: Built to withstand the rigors of regular pool and spa cycles while maintaining steady flow and consistent filtration performance.
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Maintenance-friendly use: Rinse the cartridge between replacement cycles to remove accumulated debris and extend service life, then reinstall for continued filtration efficiency.
Fitment, use cases, and practical tips
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Ideal for: residential pools and home spas using Waterway Clearwater 35 sq ft filtration systems that require cartridge C-4335 (40353 footprint).
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Use cases: routine seasonal maintenance, after heavy use, or when water clarity declines and your pump runs longer to achieve the same cleanliness.
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Installation notes: Ensure the housing is clean and dry before inserting the cartridge. The open-ended design makes alignment straightforward—just slide in and seal as per your system’s guidelines.
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Care and longevity: Regular rinsing under gentle water flow helps remove surface debris. Replace when flow clearly drops, water clarity fails to improve after backwashing, or you notice increased pump run times.
Performance and peace of mind
Choosing this waterway-compatible replacement cartridge means you’re investing in a trusted footprint that aligns with your existing filtration setup. By maintaining proper flow and effective particulate capture, it supports clearer water, easier maintenance, and a more pleasant swimming environment for you, your family, and guests. If you’re upgrading an aging cartridge or standardizing replacements across multiple pools or spas, this 35 sq ft option (C-4335) offers a reliable, straightforward solution that minimizes downtime and maximizes filtration efficiency.
