5CH-352 Replaces Marquis Spa Filter 35 sq.ft. - Durable Replacement

In this review the 5CH-352 replacement spa filter is evaluated for owners of Marquis and compatible hot tubs who need a reliable, easy-to-clean cartridge without overpaying. The bottom line: this AmiBron-compatible 35 sq.ft. filter delivers good filtration area and straightforward fitment for a long list of models, making it a practical spare or planned replacement for anyone who wants restored jet performance and clearer water without fuss.

Key Features

• Compatibility: Fits numerous OEM part numbers and models so buyers can replace worn cartridges without searching for an exact brand match.
• Filtration area: 35 sq.ft. of trilobal fabric surface captures fine debris and helps maintain clear water when combined with normal chemical care.
• Dimensions and fit: At about 12 1/2 in length with a 5-3/16 in outside diameter and a 2 in male thread, it installs easily in tubs that accept Marquis 35-style cartridges.
• Easy cleaning: The trilobal fabric structure releases trapped contaminants readily when rinsed, which keeps the cartridge functioning longer between deep cleans.
• NSF certified materials: Constructed from NSF certified filter materials, offering reassurance about material safety for pool and spa use.

Who It's For

This cartridge is best for hot tub owners who run Marquis 35 or compatible filters and want an economical, well-fitting replacement that restores flow and jet power. It is particularly useful for people who perform regular maintenance and expect to clean the element every couple of weeks to preserve performance.

Those who want an OEM-branded filter with a factory warranty or who require a noncompatible thread type should look elsewhere, but most owners of compatible models will find the fit and filtration area meet needs for routine maintenance and occasional replacement.

Pros & Cons

Pros

• Good fitment across many model numbers, making replacements simple.
• Trilobal fabric is easy to rinse and recondition, extending service life.
• NSF certified filter materials give added confidence about safety.
• Restores jet power and overall function at a sensible price point.

Cons

• As a compatible spare part from an independent brand, it is not an OEM-labeled cartridge which some buyers prefer.
• Longevity depends on proper maintenance; heavy use may require replacement within 1-2 years.

Specifications

Our Verdict

The AmiBron 5CH-352 compatible 35 sq.ft. cartridge is a practical value choice for owners of Marquis 35-style tubs who need reliable fit and improved flow without a premium price. It cleans easily, uses NSF certified materials, and will suit most routine replacement cycles provided the user cleans the element regularly.

Frequently Asked Questions

Will this fit my Marquis 35 spa?
It is designed to replace Marquis 35 style cartridges and lists multiple compatible part numbers; check that your tub uses a 2 in male thread and matches the length and diameter.

How often should I clean or replace this filter?
Clean the cartridge roughly every two weeks for best performance and expect a service life of about 1-2 years with proper maintenance.

Is this an OEM part?
No, AmiBron is an independent brand and this is a compatible spare part made to match common OEM dimensions.