I replaced a 40+ year old deep well pump with this, and hope like heck that this one lasts as long (at which point it will truly earn it's 5 star review ;) ). This unit came with good instruction, a NEW CONTROL BOX (important because the capacitor/relay can cause problems in the motor winding - no point in buying a new $4-500+ pump and reusing the same control box *rolling eyes*- though technically doable), and underwater heat shrink wiring pack. In short, the pump came with all the *necessary* components, went in well (get it? ;-) ), functions perfectly, and shows all signs of lasting as long as the original. There are a couple of things that you may want to get, how much you'll need depends upon your installtion: 1) Rope. - With the black polyethylene piping which is currently in use (for the water), it is a requirement to use some 1/4"+ polypropylene rope to support/hold/retrieve the pump if there is a break in the pipe. http://www.amazon.com/Attwood-Braided-Polypropylene-General-Purpose/dp/B002QVSPV2/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1357310104&sr=1-1&keywords=polypropylene+rope 2) Wire - Also, not something that comes w/ the pump, but since your deep well pump is going to be installed hundreds of feet down underwater, 'standard' outdoor (UWB) wire is NOT okay. underwater pump wire is NOT something you can often find at home depot (though it probably depends on the region), so if you can reuse the wiring, good. If not: http://www.amazon.com/Coleman-Cable-423380530-Underwater-500-Foot/dp/B008LTKSA4/ref=sr_1_2?s=hi&ie=UTF8&qid=1357311287&sr=1-2&keywords=underwater+pump+cable (or something similar) 3) Pipe - 1" / 1 1/4" black polyethylene pipe (available by the 100' roll) is the current industry standard, and is flexible and easy enough to use that you don't need a truck, a rig, or a well 'A' frame to install or remove it (something rounded, and a car to pull/drop oughta do). Some fittings and clamps and you are good to go: (can't find it at Amazon, luckily Home Depot typically carries it in stock.) While my pump was a royal PITA to replace, it was mainly because my pump was old enough to be installed onto the end of ~150' of welded 1 1/4" galvanized steel piping. Yeah. It sucked for a DIYer. An A-frame w/ an engine hoist, a pair of bench vises (removed from the bench ;-) ), an angle grinder (to cut off ~20' sections of pipe), and several hours of backbreaking labor later, I was ready to quit for the night... luckily the installation (on black poly) was vastly easier! So, it gets five stars for coming with *most* everything needed, good instructions, and working well! Follow up: After 35 1/2 months, my pump failed. While this might be considered a bad thing, it left me even more impressed. Pulling up the pump (at the end of the PE pipe) was straightforward, and simple. Diagnosing the failure was easy (because it blew up two new capacitors, and tested with an obvious dead short internally), and Red Lion **stood behind their 3 yr warranty 2 weeks before it ended **. I just got the replacement pump today. All I had to do was peel off the serialized label, attach it to the email correspondence about the failure, and mail it off to them. They shipped back a replacement pump and I was good to go. Yeah the week turn around time was inconvenient, but completely understandable. Now to pull back out the PITA cheap Hallmark pump I dropped down there... sigh, maybe it can wait till that guy fails ;) .