United States and Foreign Patents Granted - These products are protected under one or more of the following U.S. and foreign patents:

5,370,722 • 5,529,593 • 6,197,077 B1 • 2170244 • 95904185 • 6-2113 • 7,323,028 • 7,416,577 • 8,726,954 B2 • 7,416,577 B2 • 7,842,116 B2 • Other Patents Pending.

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Do I need to glue the magnets into the connector cavity?

NO.  the connectors are designed with a special surface on the inside of the cavity wall – Once the magnet is inserted into the connector cavity it will not come out when the filter and frame are removed from the mounting surface. If you are worried that the magnet will come out – you can apply an industrial epoxy.