voc & chemical protection
SHIELD
GUARDIAN
The right choice for municipal water when lead and PFAS are not a concern. GUARDIAN removes chlorine, improves taste and odor, and filters sediment - making your water better for drinking, cooking, and bathing.
NSF/ANSI 61
ca prop 65
IAPMO
Removes chlorine (Guardian 20) and chloramine (Guardian 20A)
High-flow filter capable of up to 20 Gallons per Minute (GPM)
Carbon block technology - more effective than granular carbon
Download
spec sheet
>99.95%
Chlorine & Chloramine Reduction
20 GPM
Peak flow rate
100,000+
Gallon capacity
VOC & CHEMICAL PROTECTION
SHIELD
GUARDIAN
The right choice for municipal water when lead and PFAS are not a concern. GUARDIAN removes chlorine, improves taste and odor, and filters sediment - making your water better for drinking, cooking, and bathing.
NSF/ANSI 53
NSF/ANSI P473
IAPMO
Removes chlorine (Guardian 20) and chloramine (Guardian 20A)
High-flow filter capable of up to 20 Gallons per Minute (GPM)
Carbon block technology - more effective than granular carbon
Download
Spec sheet
>99.95%
Chlorine & Chloramine
Removal
20 GPM
Peak flow rate
100,000+
Gallon capacity
VOC & CHEMICAL PROTECTION
SHIELD
GUARDIAN
The right choice for municipal water when lead and PFAS are not a concern. GUARDIAN removes chlorine, improves taste and odor, and filters sediment - making your water better for drinking, cooking, and bathing.
NSF/ANSI 61
CA PROP 65
IAPMO
Removes chlorine (Guardian 20) and chloramine (Guardian 20A)
High-flow filter capable of up to 20 Gallons per Minute (GPM)
Carbon block technology - more effective than granular carbon
Download
Spec sheet
>99.95%
Chlorine & Chloramine
Removal
20 GPM
Peak flow rate
100,000+
Gallon capacity
TWO variants — one platform
Matched to your water profile.
Matched to your water profile.
Your dealer selects the right variant based on your utility's disinfection method and water chemistry.
Your dealer selects the right variant based on your utility's disinfection method and water chemistry.
GUARDIAN 20 • SLD-GRD-20
Chlorine Carbon Block
Chlorine
Carbon Block
Chlorine Carbon Block
The baseline GUARDIAN configuration for homes on chlorine-treated municipal water. High-capacity coconut shell carbon for broad-spectrum chlorine reduction, taste, and odor.
The baseline GUARDIAN configuration for homes on chlorine-treated municipal water. High-capacity coconut shell carbon for broad-spectrum chlorine reduction, taste, and odor.
GUARDIAN 20A • SLD-GRD-20
GUARDIAN 20A • SLD-GRD-20A
Chloramine Carbon Block
Chloramine
Carbon Block
Chloramine Carbon Block
Catalytic carbon formulation specifically engineered to break down chloramine - a compound standard carbon blocks cannot effectively reduce. Required for chloramine-treated systems.
Catalytic carbon formulation specifically engineered to break down chloramine - a compound standard carbon blocks cannot effectively reduce. Required for chloramine-treated systems.
What GUARDIAN removes
Tested reduction. Documented results.
Tested reduction. Documented results.
Third-party tested and independently verified. These are facts, not marketing language.
Third-party tested and independently verified. These are facts, not marketing language.
Tested & Verified
Chlorine
>99.95%
Added by utilities to kill bacteria. Affects taste, odor, and has documented health effects through inhalation.
Tested & Verified
Chloramine
>99.95%
Used by some utilities as an alternative to chlorine. Requires specific carbon media — PALADIN delivers both.
Tested & Verified
Taste & Odor
Very High
High-capacity coconut shell carbon removes chlorine-related taste and odor compounds throughout the home.
Technical specifications
Built for whole-home protection.
Built for whole-home protection.
Model SLD-PALADIN on SHIELD Core housing platform.
Model SLD-PALADIN on SHIELD Core housing platform.
Specification
SHIELD GUARDIAN (SLD-GRD-20 / SLD-GRD-20A)
Filtration Level
20 micron
Peak Flow Rate
20 Gallons Per Minute (GPM)
Service Flow Rate
12 GPM
Lead Removal Capacity
>100,000 gallons @ 8 GPM
Filter Media
Highly-Activated, Sustainable Coconut Shell Carbon
Housing
SHIELD Core with Integrated Bypass, Flow Meter, SHIELD IQ Controller
Connection Size
1" MNPT
Filter Removal
Tool-Free Snap-Ring Design
Filter Certifications
NSF ANSI 53 (lead, cyst) | MSF 61 |NSF/ANSI P473 (PFOA/PFOS) | IAPMO
Housing Certifications
NSF/ANSI 42, 44, 53 Listed
Installation
Point-of-Entry (POE) - Professional Installation Required
Service Interval
Dealer-specified based on Water Usage and Water Chemistry - Tracked by SHIELD IQ
Dimensions
XX" x XX" x XX"
Specs
SHIELD GUARDIAN (SLD-GRD-20 /
SLD-GRD-20A)
Filtration Level
20 micron
Peak Flow Rate
20 Gallons Per Minute (GPM)
Service Flow Rate
12 GPM
Lead Removal Capacity
>100,000 gallons @ 8 GPM
Filter Media
Highly-Activated, Sustainable Coconut Shell Carbon
Housing
SHIELD Core with Integrated Bypass, Flow Meter, SHIELD IQ Controller
Connect-ion Size
1" MNPT
Filter Removal
Tool-Free Snap-Ring Design
Filter Certifica-tions
NSF ANSI 53 (lead, cyst)
NSF 61
NSF/ANSI P473 (PFOA/PFOS) | IAPMO
Housing Certifica-tions
NSF/ANSI 42, 44, 53 Listed
Install-ation
Point-of-Entry (POE) - Professional Installation Required
Service Interval
Dealer-specified based on Water Usage and Water Chemistry - Tracked by SHIELD IQ
Dimens-ions
XX" x XX" x XX"
Specification
SHIELD GUARDIAN (SLD-GRD-20 / SLD-GRD-20A)
Filtration Level
20 micron
Peak Flow Rate
20 Gallons Per Minute (GPM)
Service Flow Rate
12 GPM
Lead Removal Capacity
>100,000 gallons @ 8 GPM
Filter Media
Highly-Activated, Sustainable Coconut Shell Carbon
Housing
SHIELD Core with Integrated Bypass, Flow Meter, SHIELD IQ Controller
Connection Size
1" MNPT
Filter Removal
Tool-Free Snap-Ring Design
Filter Certifications
NSF ANSI 53 (lead, cyst) | MSF 61 |NSF/ANSI P473 (PFOA/PFOS) | IAPMO
Housing Certifications
NSF/ANSI 42, 44, 53 Listed
Installation
Point-of-Entry (POE) - Professional Installation Required
Service Interval
Dealer-specified based on Water Usage and Water Chemistry - Tracked by SHIELD IQ
Dimensions
XX" x XX" x XX"
Ready to protect your family?
Find a certified SHIELD dealer near you for water testing and expert recommendations.
Ready to protect your family?
Find a certified SHIELD dealer near you for water testing and expert recommendations.
Ready to protect your family?
Find a certified SHIELD dealer near you for water testing and expert recommendations.
Whole-home water defense. Independently certified. Professionally installed.
Always working.
© 2026 Crusader Manufacturing · All rights reserved
Whole-home water defense. Independently certified. Professionally installed.
Always working.
© 2026 Crusader Manufacturing · All rights reserved
Whole-home water defense. Independently certified. Professionally installed.
Always working.
© 2026 Crusader Manufacturing · All rights reserved