The 220 V Smart-Prime™ has been designed to be a truly plug and play floor drain trap priming assembly. This electronic priming assembly will deliver 2 ozs. of potable water to four floor drain traps every 24 hr. Water conservation was a very important aspect in the design of this product. This priming assembly consists of a sub-miniature solenoid valve, with timer, a physical air gap and a 6 ft electrical cord. By incorporating the Precision Plumbing Products distribution units this assembly is capable of priming up to four floor drain traps. Distribution units sold separately.