Check the listing for details. MECHANICAL INGENUITY PRELERT & PREVAC CHILLER PRESSURE / LEAK PREVENTION SYSTEM. Condition: Used. Listed at 850.00 USD. MECHANICAL INGENUITY CHILLER PROTECTION SYSTEM INCLUDES: PRELERTPRESSURE CRITICAL LEVEL ALARM WITH DISCONNECT SWITCH30A, 480V, 3 PHASE AND PREVAC PLUSREFRIGERANT LEAK PREVENTION SYSTEMWITH SET POINT ADJUSTMENT,CHILLER PRESSURE READOUT,PRESSURE AND STATUS INDICATOR LIGHTS STK: DIS-14 WE ARE ONE OF THE NATIONS LARGEST ELECTRICAL SURPLUS PROVIDERS SPECIALIZING IN NEW, USED, RECONDITIONED INDUSTRIAL ELECTRICAL CONTACT US FOR ALL YOUR PARTS NEEDS REMOVED FROM WORKING SERVICE BY OUR STAFF INDUSTRIAL SURPLUS ONLINE WANTS TO BE YOUR #1 SURPLUS PROVIDER, PLEASE DONT HESITATE TO GIVE US A CALL IF THERE IS SOMETHING WE CAN DO TO HELP MAKE THAT HAPPEN NEED YOUR ITEM FASTER ?? CONTACT US FOR EXPRESS AND OVERNIGHT SHIPPING OPTIONS DRUMMOND INDUSTRIES 2603877910 LIKE WITH ALL OF OUR PRODUCTS ( UNLESS OTHERWISE NOTED ) THIS COMES WITH A 30 DAY MONEY BACK OR EXCHANGE WARRANTY, ALL ITEMS ARE TESTED AND CHECKED FOR FUNCTIONALITY BEFORE WE LIST THEM.