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Automatic FirmLok™

FirmLok Interlock

No. 6705-50A.

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.

Replacemnt Automatic FirmLok
Cabinet
Depth
in. (mm)
For Standard
Pass-Through
For Sliding Door
Pass-Through
Cat. # Price Cat. # Price
12
(305)
6705-50A Price 6705-55A Price
18
(457)
6705-51A Price 6705-56A Price
24
(610)
6705-52A Price 6705-57A Price
36
(914)
6705-53A Price 6705-58A Price
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