We developed this row crop irrigation kit specifically for onions. It covers 10 - 20' rows with a quality filter and regulator. All you have to do is hook it up to your garden faucet. This is the best way to water your vegetables in your garden since it has emitters every 8" for even watering. Kit contains 100' of mailine tubing, filter and regulator assemply plus all the connectors and even goof plugs in case you make a mistake. Simply attach the filter assembly to a fucet or to the end of a hose, lay out the mainline tubing and connectlay out the drip tape on top of your beds. Can be used for years if properly maintained.