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JUST BETTER SINCE 1967
Products
NEW PRODUCTS!
A2L Compatible
Access Valves
Automotive
Ball Valves
Brass Fittings
Capillary Tubing and Cap Tube Tools
Caps and Couplers
Climate Class
CoreMax Rapid Charge and Evacuation System
Digital Vacuum Gauges
Digital Manifolds
Gauges
Just Better Tools
LA-CO Products
Leak Detection
Manifolds
Mini-Split Tool Kits
Refrigerant Recovery
Refrigerant Hoses
Refrigerant Scales
Repair Parts
SHIELD Refrigerant Locking Caps
Vacuum Pumps
Vacuum Pump Accessories
Wireless Products
Product Catalog
A2L READY
measureQuick and JB Go Apps
About
About JB Industries
News
Careers
Support
Register a Product
Marketing Downloads
FAQs
Repair
Warranties
Prop 65 Compliance
Contact
General Inquiry
Customer Service
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JB Product Catalog
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1.800.323.0811
Tackling HVAC with Preston: SHIELD Safety Locking Caps 101
10/22/2025
By
Kelley Witzemann
JB INDUSTRIES
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