Darlly Spa And Pool Replacement Filter Cartridge 70408 FC1228 C7442 Hayward Compatible

Meet the Darlly Spa/Pool Replacement Filter Cartridge 70408 — a precise, dependable filtration solution designed for Hayward Bottom systems. This Darlly filtration cartridge, also cataloged as FC-1228 and C-7442, is built to replace a wide range of part numbers with a simple, plug‑and‑play fit that keeps spa and pool water crystal clear without guesswork.

Compatibility and core specs

• Manufacturer: Darlly Filtration
• Model: 70408
• Replaces: 14003, 4904-011, 609396, 645544012289, AK-6029, C-7442, FC-1228, PC-1228, PLE-051-9205, PLE-051-9291, PLE-051-9292, C-400
• Application: Hayward Bottom filtration units
• Bottom: 3" diameter, Open
• Top: 3" Open
• Diameter: 7"
• Length: 14-3/16"
• Media Type: 4 oz filtration media
• Model compatibility: EasyClear C-400
• Filtration area: 40 sq ft

Why this Darlly cartridge stands out

Designed for spa and pool enthusiasts who value reliability and ease, the 70408 delivers consistent water clarity by leveraging a robust 40 sq ft filtration surface. The open-top and open-bottom configuration simplifies installation and ensures a thorough, even clean across the entire surface area. With broad compatibility, this cartridge minimizes downtime and streamlines replacements—you don’t have to juggle multiple part numbers when you perform routine maintenance.

Ideal use cases

• Regular spa maintenance: keep jets feeling fresh and water inviting for hot tub sessions.
• Pool filtration refresh: maintain clear, sparkling water during peak swimming season.
• Replacement in Hayward Bottom systems: a ready-made substitute that fits without modification.

What you can expect in everyday use

With 4 oz of filtration media, this cartridge strikes a balance between compact design and effective contaminant capture. It’s sized for compatibility with standard Hayward bottom housings, and its 7" diameter paired with a 14-3/16" length ensures a snug, secure fit in common filter assemblies. The result is easier maintenance, fewer mid-season filter failures, and consistently clear water quality.

Installation and maintenance tips

• Rinse the new cartridge under cool water before first use to remove any handling residue.
• Inspect the o-ring and seating area to ensure a watertight fit; replace gaskets if they show signs of wear.
• Place the cartridge so the open top and bottom align with the housing inlets to maximize flow and filtration efficiency.
• Avoid overtightening clamps or lids, which can damage the cartridge or housing seals.
• Schedule routine cleanings as part of your spa/pool maintenance plan to extend cartridge life and preserve performance.

Whether you’re stocking up for a seasonal swap or upgrading to a replacement cartridge with broad compatibility, the Darlly 70408 (FC-1228, C-7442) delivers dependable spa and pool filtration. It’s a practical, long‑term solution designed to keep your water clean, balanced, and ready for every soak or swim.