Cryspool CRP35B Spa Filter Cartridge 35 Sq Ft 2-Pack — 14" Length, Trilobal Pleated Media for Hot Spring/Watkins

Keep your spa water clear and running efficiently with these Cryspool replacement cartridges. Each filter cartridge measures 14 inches long with a durable pleated medium and reinforced end caps to hold shape under flow. The advanced trilobal fiber construction increases surface area for finer capture of debris and simplifies rinsing, while the 2-pack gives you a ready spare for rotation or quicker replacement when needed.

How does this filter improve water cleanliness?

The CRP35B uses a multilobed (trilobal) fiber that creates more surface area and stronger depth filtration than standard point-bond fabrics. That means more particles are trapped within the pleats rather than only on the surface, reducing cloudiness and light organic load. Regular rinsing restores flow and performance so the cartridge continues to filter effectively over many cycles.

• 35 sq. ft. of effective filtration area captures fine and coarse debris
• Pleated design increases dirt-holding capacity compared to flat media
• Trilobal fibers enable deeper contaminant penetration for thorough cleaning
• Designed for repeated wash-and-reuse cleaning cycles

Will this fit my Hot Spring or Watkins spa model?

These cartridges are sized to match CRP35B-compatible filter housings and are listed as suitable replacements for several Watkins and Hot Spring part numbers. Measure your existing cartridge or check your owner’s manual to confirm the 14" length and 6-3/8" outer diameter match before ordering. The product is an independent Cryspool replacement, offered to match OEM dimensions and fitment.

• Length: 14 inches; outer diameter: 6-3/8 inches
• Top and bottom openings: 2.1 inches each for compatible housings
• Compatible reference models include Watkins Hot Spring 33 and listed part numbers
• Sold as Cryspool replacements, not OEM parts

How do I clean and maintain these cartridges?

Cleaning is straightforward: remove the cartridge, rinse with a high-pressure hose to dislodge trapped debris, and let dry before reinstalling. The trilobal pleat structure tends to release deep-seated particles more easily during rinsing, returning the cartridge close to its original flow. Clean whenever your spa’s pressure gauge indicates it’s time, and rotate or replace cartridges as needed to keep flow and sanitation steady.

• Rinse with a strong water spray along the pleats for best results
• Use chemical soak occasionally for oils and mineral buildup (follow spa manufacturer guidance)
• Watch the filter pressure gauge; clean at the manufacturer-recommended threshold
• Store spare cartridge dry and away from direct sunlight

How durable are these replacement cartridges?

Cryspool cartridges use reinforced end caps and a robust pleated medium designed for repeated handling and rinsing without collapsing. When cleaned and handled properly, their service life is longer than many generic point-bond filters. That durability translates to fewer replacements, lower water waste, and more consistent spa performance over time.

• Reinforced end caps keep the cartridge seated and stable under flow
• Pleat structure resists distortion during cleaning cycles
• Trilobal material offers improved tear resistance over basic media
• Sold in a 2-pack for immediate replacement or rotation

Who is this for: The Cryspool CRP35B 2-pack is aimed at spa owners who need a direct-fit replacement for CRP35B/Watkins-compatible housings and who prefer washable, higher-capacity cartridges. It suits routine spa maintenance schedules, households that use their spa regularly, and anyone wanting a cost-effective backup set to minimize downtime during filter changes.