I purchased this heat exchanger direct from Vevor, as it was cheaper than on eBay and Amazon, and I specifically wanted the 30 plate exchanger, which made choices quite difficult. When it arrived, and it did arrive fairly quickly, it was well packed, and also included two fitting brackets that I didn't use. Quality is excellent!, I'm using this as a heat exchanger for my spa. I use a custom heater configuration with Webasto Thermo Top Z directly pumped to this heat exchanger via fully insulated, copper plumbing and push fit connectors. The set up is only designed to heat the heat exchange of water to 52°C. Chilled water from the spa circuit is pumped direct from the spa through the second circuit of the heat exchanger. I use a basic antifreeze solution based on copper and aluminium for the primary circuit. This set up with this heat exchanger works faultlessly. I am very impressed.