IPW Industries Inc. Compatible Replacements for Hydrologic Stealth RO Systems; HLKDF10 / 22105 / 741646
IPW Industries Compatible Replacements for Hydrologic Stealth RO Systems
Direct-fit sediment, KDF85 media, and carbon block replacements for HLKDF10, 22105, and 741646 filter housings in Small Boy and Stealth RO configurations
Three-stage pre-treatment engineered for chloramine removal and membrane protection
Sediment Pre-Filter
The 22105 compatible 10" x 2.5" sediment cartridge captures silt, rust, sand, and particulate down to 5 microns before they reach downstream stages or foul RO membranes
KDF85 Catalytic Media
HLKDF10 replacement uses copper-zinc alloy to remove chlorine, chloramines, iron, hydrogen sulfide, and heavy metals through redox reactions—critical for well water applications
Green Carbon Block
The 741646 compatible 9.75" x 2.75" carbon stage polishes taste, odor, and residual organics while protecting beneficial microorganisms in hydroponic systems
Prevents Nutrient Lockout
Removing iron and sulfur upstream prevents chemical interference with nutrient uptake, maintains membrane integrity, and extends system service life in agricultural water prep
Drop-in replacements for Hydrologic Stealth RO and Small Boy systems
This three-filter kit replaces Hydrologic part numbers HLKDF10, 22105, and 741646. Designed for Small Boy De-Chlorinator housings and all Stealth RO brand reverse osmosis systems using standard 10-inch and 9.75-inch cartridge dimensions. Confirm your existing filter sizes before ordering: sediment and KDF stages use 10" x 2.5" format, carbon block uses 9.75" x 2.75" format.
Replacement intervals for pre-treatment stages
Sediment Filter (22105)
Replace when pressure drop increases or visible particulate accumulates. Municipal water typically reaches capacity around 6 months, well water may require more frequent changes.
KDF Media Filter (HLKDF10)
Monitor chlorine test results downstream. When removal efficiency drops below 95%, replace cartridge. High iron or sulfur levels will shorten service life.
Carbon Block (741646)
Replace when taste or odor returns, or after 6-12 months of use. Carbon capacity exhausts faster with high organic loads or chloramine-treated municipal sources.
Tool-Free Installation
Standard cartridge dimensions drop into existing Hydrologic housings without modification or adapters
Membrane Protection
Upstream removal of oxidizers and metals extends RO membrane life and maintains rejection rates above 95%
Hydroponic Safe
NSF-certified media produces water free of contaminants that cause nutrient lockout or harm beneficial bacteria
Complete Kit
All three stages included for full system refresh—no need to source individual cartridges from multiple suppliers
IPW Industries Compatible Replacements for Hydrologic Stealth RO Systems
Direct-fit sediment, KDF85 media, and carbon block replacements for HLKDF10, 22105, and 741646 filter housings in Small Boy and Stealth RO configurations
Three-stage pre-treatment engineered for chloramine removal and membrane protection
Sediment Pre-Filter
The 22105 compatible 10" x 2.5" sediment cartridge captures silt, rust, sand, and particulate down to 5 microns before they reach downstream stages or foul RO membranes
KDF85 Catalytic Media
HLKDF10 replacement uses copper-zinc alloy to remove chlorine, chloramines, iron, hydrogen sulfide, and heavy metals through redox reactions—critical for well water applications
Green Carbon Block
The 741646 compatible 9.75" x 2.75" carbon stage polishes taste, odor, and residual organics while protecting beneficial microorganisms in hydroponic systems
Prevents Nutrient Lockout
Removing iron and sulfur upstream prevents chemical interference with nutrient uptake, maintains membrane integrity, and extends system service life in agricultural water prep
Drop-in replacements for Hydrologic Stealth RO and Small Boy systems
This three-filter kit replaces Hydrologic part numbers HLKDF10, 22105, and 741646. Designed for Small Boy De-Chlorinator housings and all Stealth RO brand reverse osmosis systems using standard 10-inch and 9.75-inch cartridge dimensions. Confirm your existing filter sizes before ordering: sediment and KDF stages use 10" x 2.5" format, carbon block uses 9.75" x 2.75" format.
Replacement intervals for pre-treatment stages
Sediment Filter (22105)
Replace when pressure drop increases or visible particulate accumulates. Municipal water typically reaches capacity around 6 months, well water may require more frequent changes.
KDF Media Filter (HLKDF10)
Monitor chlorine test results downstream. When removal efficiency drops below 95%, replace cartridge. High iron or sulfur levels will shorten service life.
Carbon Block (741646)
Replace when taste or odor returns, or after 6-12 months of use. Carbon capacity exhausts faster with high organic loads or chloramine-treated municipal sources.
Tool-Free Installation
Standard cartridge dimensions drop into existing Hydrologic housings without modification or adapters
Membrane Protection
Upstream removal of oxidizers and metals extends RO membrane life and maintains rejection rates above 95%
Hydroponic Safe
NSF-certified media produces water free of contaminants that cause nutrient lockout or harm beneficial bacteria
Complete Kit
All three stages included for full system refresh—no need to source individual cartridges from multiple suppliers
Original: $57.00
-65%$57.00
$19.95Description
IPW Industries Compatible Replacements for Hydrologic Stealth RO Systems
Direct-fit sediment, KDF85 media, and carbon block replacements for HLKDF10, 22105, and 741646 filter housings in Small Boy and Stealth RO configurations
Three-stage pre-treatment engineered for chloramine removal and membrane protection
Sediment Pre-Filter
The 22105 compatible 10" x 2.5" sediment cartridge captures silt, rust, sand, and particulate down to 5 microns before they reach downstream stages or foul RO membranes
KDF85 Catalytic Media
HLKDF10 replacement uses copper-zinc alloy to remove chlorine, chloramines, iron, hydrogen sulfide, and heavy metals through redox reactions—critical for well water applications
Green Carbon Block
The 741646 compatible 9.75" x 2.75" carbon stage polishes taste, odor, and residual organics while protecting beneficial microorganisms in hydroponic systems
Prevents Nutrient Lockout
Removing iron and sulfur upstream prevents chemical interference with nutrient uptake, maintains membrane integrity, and extends system service life in agricultural water prep
Drop-in replacements for Hydrologic Stealth RO and Small Boy systems
This three-filter kit replaces Hydrologic part numbers HLKDF10, 22105, and 741646. Designed for Small Boy De-Chlorinator housings and all Stealth RO brand reverse osmosis systems using standard 10-inch and 9.75-inch cartridge dimensions. Confirm your existing filter sizes before ordering: sediment and KDF stages use 10" x 2.5" format, carbon block uses 9.75" x 2.75" format.
Replacement intervals for pre-treatment stages
Sediment Filter (22105)
Replace when pressure drop increases or visible particulate accumulates. Municipal water typically reaches capacity around 6 months, well water may require more frequent changes.
KDF Media Filter (HLKDF10)
Monitor chlorine test results downstream. When removal efficiency drops below 95%, replace cartridge. High iron or sulfur levels will shorten service life.
Carbon Block (741646)
Replace when taste or odor returns, or after 6-12 months of use. Carbon capacity exhausts faster with high organic loads or chloramine-treated municipal sources.
Tool-Free Installation
Standard cartridge dimensions drop into existing Hydrologic housings without modification or adapters
Membrane Protection
Upstream removal of oxidizers and metals extends RO membrane life and maintains rejection rates above 95%
Hydroponic Safe
NSF-certified media produces water free of contaminants that cause nutrient lockout or harm beneficial bacteria
Complete Kit
All three stages included for full system refresh—no need to source individual cartridges from multiple suppliers
