The Unicel C-5345 is a premium 45 sq ft replacement filter cartridge purpose-built for Rec Warehouse S2/G2 spa systems as well as Rainbow and Waterway models. Constructed from durable spun-bonded polyester media and featuring roughly 230 precision-formed pleats, it delivers outstanding dirt-holding capacity and prolonged intervals between cleanings. With dimensions of 5 5/16" in diameter and 10 1/8" in length, plus open 2 1/8" inner-diameter end caps, this cartridge serves as a direct drop-in substitute for OEM units. Designed for effortless installation and superior flow dynamics, the C-5345 maintains sparkling-clear spa water with minimal upkeep.

Key Benefits

• 45 Sq Ft High-Capacity Filtration: Generous surface area combined with approximately 230 pleats provides exceptional dirt retention and extended service between maintenance cycles.
• Heavy-Duty Polyester Construction: Manufactured from chemical-resistant, spun-bonded polyester media that delivers dependable, long-lasting performance in hot tub and spa environments.
• Exact-Fit Engineering: Precise dimensions of 5 5/16" diameter, 10 1/8" length, and open 2 1/8" inner-diameter end caps replicate OEM cartridge geometry for a seamless swap.
• Multi-Brand Compatibility: Works with Rec Warehouse S2/G2, Rainbow, and Waterway spa systems, providing a single solution across multiple equipment platforms.
• Optimized Water Flow: Carefully engineered pleat spacing encourages balanced hydraulic performance and effective filtration, supporting pump efficiency and exceptional water clarity.

Specifications

• Brand: Unicel
• Part Number: C-5345
• Outside Diameter: 5-5/16_
• Length: 10-1/8
• Inner-Diameter: 2_-1/8_

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