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Drip Irrigation Tubing, Emitters and Fittings

Drip tubing, emitters, manifolds, couplings and conversion kits for watering beds, pots and shrubs at the roots. 10 products from $7.99 to $20.99. RAINBIRD and more.

10 products from $7.99

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Half-inch mains and quarter-inch feeders

A drip system has a main line and branches. The 1/2 inch tubing carries water from the tap to the planting area, and 1/4 inch tubing runs from it to individual plants or pots. Each size uses its own barbed couplings, tees and connectors, so a 1/4 inch coupling will not fit 1/2 inch tubing. Plan the route, measure the length, and count how many branches you need. Bulk rolls of 100 ft suit large beds, while convert kits adapt a sprinkler zone to drip.

Emitter flow in GPH and how many one zone can run

Emitters are rated in gallons per hour, commonly 0.5, 1.0 and 2.0 GPH. A small, shallow-rooted plant takes a low-flow emitter; a shrub or tree takes higher flow or several emitters. Add up the GPH of everything on a line and keep the total comfortably under what your tap and regulator can supply and the tubing can carry, or the far end will get less water. Manifolds split one line into several outlets, and multi-outlet heads feed a cluster of pots. Flush the lines when you first connect them.

Questions about Drip Irrigation Tubing, Emitters and Fittings

How many emitters can I run on one line?
Add up the flow of every emitter and keep the total below what your tap can supply, with some margin, and within the tubing's maximum flow, which is far lower for 1/4 inch than for 1/2 inch tubing. Long runs lose pressure, so split large beds into separate zones instead of one very long line.
Can I mix drip parts from different makers?
Often, but check the tubing's outside diameter, not just the nominal size. Barbed fittings need a close fit to seal, and sizes labeled 1/2 inch or 1/4 inch can differ slightly. Stay with one system where you can, particularly for connectors that must hold under pressure.
Why are some of my emitters not dripping?
Clogs from grit or mineral scale are the usual cause, and an air lock or low pressure can also stop flow. Fit a filter at the tap, flush the line before adding emitters, and replace any that stay blocked.