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A tall, white roll of filter paper on a white background.
Close-up of a white, cylindrical HydroLogic 5-micron sediment filter cartridge with a circular opening in the center.
A tall, white roll of filter paper on a white background.
Close-up of a white, cylindrical HydroLogic 5-micron sediment filter cartridge with a circular opening in the center.
Ask Sage about this product

HydroLogic Sediment Pre-Filter Poly Spun 5 Micron (20" x 4.5")

Official HydroLogic Systems Dealer Model: HGC741672
$59.75 USD$49.00 USD$59.75 USD
 $59.75 USD
  • Rated to 5 microns for thorough sediment capture
  • Melt-blown polypropylene cartridge measuring 20" by 4.5"
  • Monthly replacement recommended or when pressure delta exceeds 10%
  • View More Details

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  • Free Shipping On Most Items*To the lower 48
  • Transparent PricingBacked w/ price match guarantee
  • 4.8/5 Top Quality Store on Google
  • Secure CheckoutSSL encrypted payments

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Ask Sage about this product
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We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

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THROUGH THE Cultivator's LENS Product Evaluation

  • You are replacing your RO pre-filters because suspended silt and rust are starting to shorten the life of your expensive downstream equipment
  • You are scaling up your high-capacity filtration setup because your current stage fails to capture fine particulate before it reaches the reverse osmosis system

  • The melt-blown polypropylene cartridge is rated to 5 microns to strip out silt and rust before they reach delicate pump components.
  • Monthly replacement is recommended, or sooner if the pressure delta exceeds 10 percent.
  • This filter fits neatly in the gray housing beneath the system to catch particulate during the pre-filtration stage.

  • Operators running commercial reverse osmosis systems report that monthly filter changes keep their pumps running without unexpected pressure drops
  • Growers who track their filter pressure deltas say catching sediment early prevents premature membrane failure and costly downtime

HydroLogic Sediment Pre-Filter Poly Spun 5 Micron (20" x 4.5")

Unfiltered sediment is one of the fastest ways to shorten the life of an expensive RO pump or membrane. The HydroLogic Sediment Pre-Filter is a 20" melt-blown polypropylene cartridge rated to 5 microns, built to strip out silt, rust, dirt, and other suspended solids before they ever reach the more delicate — and costly — components downstream.

Installed in the gray housing beneath the HydroLogic Evolution-RO1000 Reverse Osmosis System, this filter delivers OEM-level protection for the RO pump and helps extend membrane life by catching particulate at the pre-filtration stage. The same filter is also widely used on HydroLogic's Industrial and Heavy-Industrial RO systems paired with CIP (clean-in-place) units, where it captures membrane scale build-up removed during cleaning cycles.

For consistent protection, HydroLogic recommends monthly replacement — or sooner if the filter-in/filter-out pressure delta exceeds 10%, a sign the cartridge is loading up and starting to restrict flow.

Features

🧵
Melt-Blown Polypropylene

Ultra-fine construction rated to 5 microns for thorough sediment capture.

🛡️
OEM-Level Equipment Protection

Protects RO pumps and extends membrane life by capturing solids upstream.

🏭
Compatible with CIP Systems

Used on Industrial and Heavy-Industrial RO systems to capture membrane scale build-up.

📅
Simple Replacement Schedule

Monthly replacement recommended, or sooner if pressure delta exceeds 10%.

Specifications

Specification Value
Filter Media Melt-blown polypropylene
Micron Rating 5 microns
Dimensions 20" × 4.5"
Recommended Replacement Monthly, or sooner if pressure delta exceeds 10%

Frequently Asked Questions

What does this filter remove from my water? +

This sediment pre-filter removes silt, rust, dirt, and other suspended solids. This level of high-capacity filtration is the same standard utilized in the HydroLogic BIGboy Dechlorinator & Sediment System to ensure clean water for large-scale applications.

Where does this filter go in a HydroLogic RO system? +

On Commercial Series RO systems, it's located in the gray housing positioned under the RO unit, where it pre-filters water before it reaches the pump and membranes.

Why does sediment filtration matter for my RO system? +

Sediment can wear down and damage costly components like the RO pump and membranes. Even for smaller setups, systems like the HydroLogic Stealth-RO300 300GPD Reverse Osmosis System rely on dedicated sediment stages to protect their internal components from premature failure.

How often should I replace this filter? +

HydroLogic recommends monthly replacement, or sooner if the filter-in/filter-out pressure delta exceeds 10%, which indicates the cartridge is loading up and restricting flow.

Can this filter be used with Industrial or Heavy-Industrial RO systems? +

Yes — it's also commonly used on HydroLogic's Industrial and Heavy-Industrial RO systems paired with CIP (clean-in-place) units, where it captures scale build-up removed from the membrane during cleaning.

What size filter is this? +

This is a standard 20" filter cartridge sized for 4.5" housings, with a 5-micron rating for ultra-fine sediment capture.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

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