Springtech Elite 500 with 2nd membrane added. Machine and original membrane is 5 years old, 2nd is 3 years old. Very well cared for. Processes sap at around 700 gallons per hour and is capable of bringing concentrate to 9% with a single pass. Price reduced for fall sale. Purchased a HC2 to increase capacity. Call Tom at 878 3929 or send email to westfordsugarworks@gmail.com