The GasGuard™ tamper-resistant locking valve cap helps prevent refrigerant theft, leaks, and refrigerant huffing from residential and commercial air conditioning and refrigeration equipment. The cap’s ...

The Novent® tamper-resistant locking caps aid in the prevention of refrigerant theft, leaks to the environment, and intentional inhalation or “huffing,” from access ports on residential and light ...

GASGUARD TAMPER-RESISTANT LOCKING VALVE CAPS help prevent refrigerant theft, leaks and refrigerant “huffing” from AC/R equipment.

CAMARILLO, Calif.--With a simple concept, essentially similar to child-proof pill bottles, Flow Security Systems has entered the fire and security market by manufacturing and installing locks for ...