Malaka Spa Filter Cartridge FD2001 2-Pack — Fits PRB25-IN/C-4326, 25 sq.ft. pleated media

These Malaka replacement cartridges give your spa a clean, economical filtration option without changing plumbing or filter housings. Each cartridge measures 13-5/16" (33.5 cm) tall with a broad 25 sq.ft. of media area designed to trap particles, hair, and sediment that reduce water clarity. The cylinders use open inner cores top and bottom for unrestricted flow while matching the common dimensions of many OEM filters, making swaps quick and straightforward.

Will this filter fit my PRB25-IN or C-4326 hot tub?

Yes — the FD2001 is sized to align with the physical dimensions and connection style of those models. Before ordering, compare your current cartridge’s length and diameters to confirm a match.

• Height: 13-5/16" (33.5 cm)
• Outer diameter: 4-15/16" (12.5 cm)
• Inner diameters (top/bottom): 2-1/8" open (5.4 cm)
• Fits PRB25-IN, C-4326, FC-2375 and many compatible OEM housings

How does the Malaka cartridge improve water clarity?

The cartridge increases mechanical filtration surface to capture fine debris before it recirculates, helping pumps and chemical treatments work more efficiently. With 25 square feet of pleated media, it provides ample collecting area while maintaining flow through the open core design.

• 25 sq.ft. pleated media traps particulate and hair
• Open top and bottom inner core minimize flow restriction
• Durable construction resists collapsing under pump pressure
• Cleaner water reduces strain on sanitizers and equipment

How do I install and maintain these replacement filters?

Installation takes minutes: power off the spa, remove the old cartridge, slide the Malaka unit into place, and re-secure the housing. Routine rinsing and periodic deep cleaning extend life and preserve performance; replace cartridges when pleats remain clogged after cleaning.

• Turn off power, locate filter canister, remove old cartridge
• Insert new Malaka cartridge into housing aligned with openings
• Rinse weekly with a hose; use filter cleaner soak monthly
• Replace every 6–12 months depending on use and water quality

What materials and dimensions should I expect from this 2-pack?

Each cartridge is manufactured from pleated synthetic media wrapped around a supportive open-core tube. The specified dimensions ensure compatibility with a broad range of spa makes and models while offering a filtration area designed for extended service life.

• Length/Height: 13-5/16" (33.5 cm)
• Outer diameter: 4-15/16" (12.5 cm)
• Inner diameters: 2-1/8" open top and bottom (5.4 cm)
• Filtration area: 25 square feet of pleated media per cartridge

Who this is for: Malaka FD2001 cartridges are ideal for hot tub and spa owners seeking an affordable, OEM-compatible replacement that restores filtration performance quickly. Choose this 2-pack if you want spare filters on hand for scheduled changes, maintain peak pump efficiency, or upgrade from a worn or low-capacity cartridge without modifying your spa. These filters suit residential spa users, rental property managers, and service technicians who need consistent, easy-to-install filtration components.