In order to better serve our customers, we are upgrading our phone service. There may be intermittent land line outages. If you're having trouble reaching us, please email to your Terra contact or to Info@TerraUniversal.com.
We are sorry for the inconvenience.
This effective mechanism is rated for millions of operations. The moment a door is opened, the FirmLok automatically locks the opposing door without the need to activate a latch or switch. The heavy-duty mechanism retracts inside an easy-clean stainless steel housing when not engaged to eliminate protruding hardware.
Note: FirmLoks are included in the pass-through when originally ordered. The chart below is for replacement FirmLoks.