
#4 Secure Plunger System
#4 Basic Plunger System is a tamper-resistant barrel lock made of case-hardened, plated steel for utility meters. It uses a retractable ball mechanism and is ideal for securing electric, gas, water, and telecom services.

#6 Secure Plunger System
#6 Secure Plunger System is a universal, tamper-resistant barrel lock made of case-hardened steel with a heavy spring-loaded plunger for enhanced security. It’s available with standard or EZY ergonomic keys.
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