$75 · 120 Volt Electromagnetic Door Holders 120v CSA approved

120 Volt Electromagnetic Door Holders 120v CSA approved - I have (4) magnet door hold open units - Sargent 1501 MagnaMatic Door Holder(s) - never used still in the box. Also (2) other units Slightly used. These are Great to hold open shop doors, passage doors on timers, or to hold open door. These were designed for use with self-closing fire and smoke barrier doors and helps in controlling the spread of fire and smoke by automatically releasing the door and closing the doors. Great for holding doors open during deliveries then releasing to close the door . $75.00 each - O R O - Or Reasonable Offer - - Also could do, like all for $250.00