NOTE: if you have an older machine without the safety thermostat let us know during check out we will provide the closing plug for the middle hole. See pictures below to compare, on the older style the hole is threaded and 10mm in diameter, on the newer style the welt is not threaded and 4mm in diameter.
Installation tip: To protect your new element, consider leaving one HE wire disconnected until you’re certain the boiler is properly primed and element is submersed.