220V Pump Shipped with 1 1/2 Inch Unions included. Very quiet, Energy Efficient operation. * FIRST BE SURE TO ADD WATER with a hose or clean container to the newly installed PUMP BEFORE STARTING IT FOR THE FIRST TIME or after Servicing it.When Power is applied the LCD display will light, Power Light will be Green. START STOP should be OFF to Program and perform the initial setup.* Note: ( this isn't in the manual ) Unused CYCLES need both Start and Stop Set to 00:00 to DISABLE unused CYCLES there are 8 of them The recommended setting for minimum Speed is 750 RPM or greater ( Pump must be moving water to prevent premature failure due to drying out from no water flowing through it ). Note: There is NO PRIME Function instead use a SCHEDULE - CYCLE for a Speed and time sufficient to prime the Pump after it has water in it but has been off overnight 2500 to 3000 RPM 4 to 8 minutes should be sufficient set as first CYCLE in the SCHEDULED CYCLE (CYCLE 1 START) (CYCLE 1 STOP) (CYCLE 1 SPEED).There are many functions that are in the Manual, I would suggest you read it before attempting to operate the pump for the first time. ( EGG TIMER function it's in there, but I don't think it's Needed )If you Press QUICK CLEAN it will ramp up the pump speed to the preset of 3450RPM or you can setup the QUICK CLEAN for a Time and Speed you prefer, Used for things like Vacumming or moving more water to skim the surface of the pool quicker when the time elapes the pump will return to its programmed Schedule and resume operation.Note: at a Speed of 2200 RPM Yes it still runs my pool cleaner ( Zodiac Barracuda) around the pool at this speed it indicates drawing only 255 Watts of power that's a 75% plus power saving over a comparable 1.5HP single speed pump It's not uncommon for a 1.5 horsepower pump to use 1100 " 1725 wattsThis Pump doesn't seem to move as much water as Max-Flow Hayward pump it replaced but its still only half the price of one. It simply works, saves power and money and I am satisfied with its performance. The pump comes from China and it has foam packing protection on the top and bottom of the pump to minimize damage from shippingthe sides of the cardboard box are vulnerable to Impacts, this should be protected better.Great, Price, Value, and Customer Service.Note Technical Support is not something you should expect with the purchase. If you are not technical I would highly recommend you get a professional to install this pump for you.