Unicel® C-4326 – 25 Sq Ft Rainbow/Waterway Spa Filter Cartridge – part #C-4326

$34.50
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Unicel® C-4326 – 25 Sq Ft Rainbow/Waterway Spa Filter Cartridge – part #C-4326

Unicel® C-4326 – 25 Sq Ft Rainbow/Waterway Spa Filter Cartridge – part #C-4326

$34.50
Description
The Unicel® C-4326 filter cartridge is a 25 square foot replacement for select Rainbow, Waterway, and other spa systems. Featuring durable Reemay® polyester media, this cartridge captures debris and particulates while maintaining water clarity and strong flow rates. Both ends are open with a 2-1/8" inner diameter, making it easy to install in compatible spa filter housings. Regular replacement keeps your spa running efficiently and water fresh.

Product Description

  • 25 sq ft replacement filter cartridge designed to fit many Rainbow, Waterway, and compatible spa systems.

  • Made with high-quality Reemay® spunbond polyester media for dependable filtration and long-lasting performance.

  • Open top and bottom (2-1/8" inner diameter) allow easy drop-in installation in standard canister systems.

  • Measures 13-5/16" in length with a 4-15/16" outer diameter for a precise fit.

  • Effectively captures fine debris, oils, and sediments to maintain crystal-clear spa water.

  • Helps extend the life of spa equipment by keeping contaminants out of the plumbing and jets.

  • Designed for easy weekly rinsing and monthly deep cleaning; replace every 12 months or as needed.

  • Manufactured by Unicel®, a leader in spa and pool filtration products.

Product Specification

Brand Unicel
SKU C-4326
Dimensions 5.394 x 5.315 x 13.976 in
Barcode 852673893218
Weight 1.2 lb

Product Compatibility

  • 2002 - 2008 Nordic Hot Tubs™ Crown
  • 2008 - 2021 Nordic Hot Tubs™ Crown II
  • 2008 - 2021 Nordic Hot Tubs™ Crown XL
  • 2008 - 2021 Nordic Hot Tubs™ Escape
  • 2008 - 2021 Nordic Hot Tubs™ Escape MS
  • 2008 - 2021 Nordic Hot Tubs™ Escape SE
  • 2008 - 2021 Nordic Hot Tubs™ Escape LS
  • 2008 - 2024 Nordic Hot Tubs™ Impulse
  • 2008 - 2021 Nordic Hot Tubs™ Impulse DP
  • 2008 - 2021 Nordic Hot Tubs™ Warrior XL
  • 2002 - 2008 Nordic Hot Tubs™ Warrior
  • 2008 - 2021 Nordic Hot Tubs™ Rendezvous LS

FAQ

Q: What spas does the C-4326 fit?

A: It fits many Rainbow and Waterway models—check measurements and open-end design for compatibility.

Q: How does this differ from the C-2302?

A: The C-4326 has open ends with a 2-1/8" inner diameter; the C-2302 has a closed top and threaded bottom.

Q: Can I clean and reuse this filter?

A: Yes, rinse weekly and deep clean monthly to maintain flow and water quality.

Q: What’s the recommended replacement cycle?

A: Every 12 months or sooner with heavy use.

Q: Is this genuine Reemay® material?

A: Yes, it’s made with 100% Reemay® for durability and superior filtration.

Directions

Power off the spa and remove the existing filter from the housing.

Rinse the new C-4326 filter thoroughly to remove any loose fibers.

Insert the new filter with both ends fully seated in the housing.

Restore power and ensure proper water flow through the filtration system.

Clean regularly and replace every 12 months for optimal performance.

Customer Reviews

Based on 148 reviews
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49%
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S
Skylar K.
Perfect fit

Very happy with this purchase. The materials feel solid and it fits perfectly.

E
Elliot H.
Perfect fit

Exactly what I needed. It works better than the original part that came with the spa.

S
Sam R.
Just what I needed

Shipped quickly and installed easily. The performance is noticeably better now.

L
Leslie W.
Great quality!

Excellent experience from ordering to installation. I’ll definitely be back.

A
Avery B.
Solid product

Outstanding quality and fast shipping. This product exceeded all expectations.

123

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