55 PLATE DUAL PASS FOOD GRADE STAINLESS STEEL PLATE EXCHANGER FOR COOLING DAIRY FARM MILK BEFORE IT EVEN GETS TO THE BULK TANK. HOOK YOUR WATER SYSTEM UP THROUGH THE PLATE COOLER BEFORE THE COWS GET THEIR WATER SUPPLY AND SEE AMAZING RESULTS TO YOUR BULK TANK COMPRESSOR RUN TIME. THE MORE COLD WATER YOU RUN THROUGH THE PLATE COOLER, THE COOLER YOU CAN GET YOUR MILK. MANY DAIRY FARMS ARE GETTING 60 TO 65 DEGREE MILK OUT OF THIS UNIT WITH PROPER WATER FLOW. THESE COOLERS ARE APPROVED FOR MILK COOLING SYSTEMS. THE DUAL PASS FEATURE MEANS YOU CAN RUN YOUR MILK PAST WELL WATER TEMPERATURE TWO TIMES BEFORE THE MILK EXITS THE COOLER. THE WATER CONNECTIONS ARE 1" NATIONAL PIPE THREAD, AND THE MILK CONNECTIONS ARE 1 1/2" TRI CLAMP PIPELINE FITTINGS. THIS UNIT SAVES A LOT ON THE ELECTRIC BILL. VERY NICE PLATE COOLER! YOU WILL NOT BE DISAPPOINTED. Must have room for large freight truck to enter for delivery and you must be able to unload product. Residential areas with truck load restrictions will not be to be delivered to.