Found In These Collections
The Unicel C-5345 Cartridge is a 45 sq ft replacement filter built for Rec Warehouse S2/G2 spa systems, with compatibility extending to Rainbow and Waterway models. Designed to match OEM specifications, this cartridge features durable spun-bonded polyester media with approximately 230 pleats for high dirt-holding capacity and extended filtration cycles. Measuring 5-5/16" in diameter and 10-1/8" in length, with open 2-1/8" end caps, it installs directly in place of original filters for a seamless fit. Resistant to spa chemicals and designed for dependable water clarity, the C-5345 helps maintain strong circulation and efficient pump performance while reducing the need for frequent maintenance.
Highlights
-
Optimized Spa Filtration: Provides 45 sq ft of surface area with about 230 pleats, capturing fine debris and extending cleaning intervals for spa owners.
-
Durable Polyester Fabric: Built from spun-bonded polyester media that resists chlorine, sanitizer chemicals, and spa water conditions for long-lasting use.
-
Exact Replacement Fit: Measures 5-5/16" diameter by 10-1/8" length with 2-1/8" open ends, designed to mirror OEM filter dimensions for a direct swap.
-
Cross-System Compatibility: Works with Rec Warehouse S2/G2 spas and integrates smoothly with Rainbow and Waterway spa filtration systems.
-
Efficient Flow Characteristics: Balanced pleat geometry promotes smooth hydraulic performance, maintaining strong pump efficiency and clear water.
Specification
- Outside Diameter: 5-5/16″
- Length: 10-1/8
- Inner-Diameter: 2 -1/8″
Additional Info
The Unicel C-5345 45 sq ft spa filter cartridge replaces OEM filters in Rec Warehouse S2/G2, Rainbow, and Waterway systems. Below are installation tips, compatibility checks, and troubleshooting details, with emphasis on local pricing and shop availability.
Installing the Unicel Cartridge Locally
This filter features 2 1/8″ open ends and installs tool-free. Proper alignment helps maintain water flow and maximize spa performance.
How do I position the C-5345 cartridge in my G2 spa system?
Why does the new filter lean inside my housing?
Can I check local shop stock for the Unicel C-5345 cartridge?
Do I need special tools for replacement, or is it drop-in ready?
Confirming Local Compatibility
The C-5345 is compatible with Rec Warehouse, Rainbow, and Waterway spa systems. Checking dimensions ensures a proper match before buying locally.
Will the C-5345 cartridge fit my Waterway spa filter?
How can I confirm locally that my spa uses the Unicel C-5345?
Can I compare local prices for the C-5345 cartridge?
Do nearby shops stock this filter for quick replacement?
Fixing Common Spa Filter Problems
Clogging, poor flow, or cloudy water may indicate worn or undersized cartridges. Replacing with the C-5345 restores reliable spa performance.
Why does my spa lose pressure with the new C-5345 installed?
How do I fix cloudy water after replacing the cartridge?
Should I replace multiple cartridges at once in larger spa systems?
Can local staff confirm if the C-5345 is correct for my spa?
Questions & Answers
Have a Question?
Be the first to ask a question about this.