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Matthew has been working with tools his entire life. When he was just 15 years old, he rebuilt his first engine. Since then, he has worked in the diesel mechanic industry, repaired conveyor belt systems, and spent years as a handyman. He has always loved taking things apart and figuring out how they work.
Matthew also spent 3 years working as the only Telebelt mechanic in the Midwest, where he was responsible for fixing anything that broke down. That experience gave him deep hands-on knowledge of heavy equipment and complex machinery.
Matthew is one of those rare people who truly loves tools. If you’re not sure what you need, he can walk you through the entire process — from choosing the right tool to making sure you get the best price.
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Air Filtration • Precision Regulation • Compressor Upgrade Kit
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit
The California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit is a complete air control and filtration upgrade designed to deliver clean, regulated air from compatible compressors. Featuring a 5-micron particulate filter, precision regulator, and integrated pressure gauge, this assembly ensures consistent air output while protecting tools and systems from contaminants. Engineered for easy installation, it replaces standard ball valves with a more advanced pressure regulation solution.
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Applications
Air compressor output pressure regulation and filtration
Upgrading compressor systems with regulated air output
Providing clean air supply for pneumatic tools and equipment
Industrial, workshop, and professional air system setups
Ideal for users seeking improved air quality, stable pressure output, and enhanced compressor performance.
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Specifications
Part Number
90998-1-Kit
Max Output Pressure
120 PSI
Filtration
5 Micron (µm) Particulate Filter
Gauge Size
1.5″ Dial (0–120 PSI)
Output Connection
1/4″ NPT
Input Conversion
1/2″ NPT to 3/8″ NPT Adapter
Connection Type
1/4″ Industrial Push-To-Connect Hose Connector
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Performance & Construction
5-micron filtration system removes contaminants and particulates from compressed air.
Integrated pressure regulator provides consistent and adjustable air output.
Complete adapter system converts 1/2″ NPT input to 1/4″ NPT output.
Push-to-connect hose fitting enables quick and easy air hose connection.
Durable industrial components built for long-term use in demanding environments.
Compact inline design simplifies installation and integration.
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Compatibility
CAT-20060CAD
CAT-20060DCC
CAT-60050SCR
CAT-60065C
CALAIR 60037BD
CAT-80060C
CALAIR 80050BD
Designed to replace standard 1/2″ ball valve assemblies with a regulated and filtered air output system.
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Included Components
Regulator Unit
Air Filter Regulator (90998-1)
Gauge
1.5″ Pressure Gauge (0–120 PSI)
Reducer
1/2″ NPT to 3/8″ NPT Nipple
Bushing
3/8″ to 1/4″ Brass Adapter
Connector
1/4″ Industrial Push-To-Connect Hose Fitting
Tubing
1/4″ ID × 3/8″ OD Clear PVC Hose (1 ft)
Why Choose the California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit
Improves air quality with integrated 5-micron filtration.
Provides stable, adjustable pressure for consistent tool performance.
Easy installation with complete adapter and connector system.
Compatible with multiple California Air Tools compressor models.
Enhances overall compressor efficiency and system reliability.
The California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit is a practical upgrade for achieving cleaner air, precise pressure control, and improved performance in compressed air systems.
Key Information
Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On Most Items In The Contiguous United States only
Our tool specialists are ready to help you find the perfect solution for your specific application.
Ironline Project Toolsuite
Engineering math for heavy operations. Validate your CFM, ROI, and OSHA specs before procurement.
Launch Toolsuite
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Engineering Toolsuite
Industrial calculations for facility planning and financial justification.
1. Facility & Utility Sizing
Airflow, thermal load, and suction requirements.
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2. Safety & OSHA Compliance
Noise limits, combustible dust, and shop layout safety.
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3. CAPEX & Strategic Analysis
Section 179, Labor ROI, and downtime revenue loss.
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Facility & Utility Sizing
Airflow Sizer (CFM)
Calculate ventilation for cooling and air quality.
Dehumidification (PPD)
Determine moisture removal for curing or climate control.
Dust Collection (CFM)
Required suction for material extraction.
Machine Thermal Load
Size cooling based on machine BTU output.
Safety & OSHA Compliance
OSHA Noise Exposure
Calculate daily noise dose and legal limits.
Combustible Velocity
Required FPM to move materials safely through ducting.
Heat Stress Index
Workplace danger zones based on heat and humidity.
Safe Machine Spacing
Physical footprint including material handling clearance.
CAPEX & Strategic Analysis
Section 179 Savings
Immediate tax deduction for equipment purchase.
Cost of Inaction
Revenue bleed from legacy equipment downtime.
Labor ROI (Payback)
Months until machine labor savings covers the cost.
Material Waste Savings
Monthly profit increase from scrap reduction.
Airflow Sizer
Recommended Airflow:
0 CFM
Dehumidification
Moisture Removal:
0 PPD
Dust Collection
Min. Suction Needed:
0 CFM
Machine Thermal Load
Heat Output:
0 BTU/hr
Cooling: 0 Tons
OSHA Noise Dose
Daily OSHA Dose:
0%
Duct Velocity
Required Volume:
0 CFM
Heat Stress Index
Feels Like:
0 °F
Safe Footprint
Safe Shop Area:
0 Sq Ft
Section 179 Savings
Tax Savings:
$0
Net Cost: $0
Cost of Inaction
Monthly Loss:
$0
Labor ROI
Payback Period:
0 Months
Waste Reduction
Monthly Savings:
$0
Field Reports
California Air Tools 120 PSI Output Pressure Regulator Assembly w/Gauge (1/4″ NPT Output) 90998-1-Kit Reviews
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Store Wide Frequently Asked Questions
Shipping is 100% Free on every order within the Contiguous United States. Orders are processed in 1 to 3 business days, and transit time takes 1 to 5 business days. You can expect your equipment to arrive in 2 to 8 business days total.
Large industrial equipment ships via LTL freight. Standard delivery is curbside to a commercial address. If your facility does not have a loading dock or forklift, we offer Liftgate Delivery to safely lower the equipment to the ground. We also accommodate residential shop deliveries—just let our team know so we can dispatch the right truck.
Yes. We are authorized dealers, and every product we sell includes the manufacturer’s full standard warranty to ensure your machinery performs exactly as it should.
Industrial equipment is heavy, and transit damage occasionally happens. If you notice visible damage upon delivery, note it with the carrier or refuse the shipment. Take photos and email us at info@ironlinetools.com the same day. We will arrange return shipping and send a replacement at no extra cost to you.
Absolutely. You’re never buying tools alone. Our equipment specialists are available 7 days a week, from 7:00 AM to 7:00 PM (Central Time). Call us directly at (888) 308-5580 or email info@ironlinetools.com.