Start with the bed size and water source. Compare what each kit contains, then check the route and connections you need.
Check a kit for your bedsCoverage is what each maker states. Scroll across for pressure, timer and backflow parts.
| Kit | Stated coverage | Pressure | Timer | Backflow preventer |
|---|---|---|---|---|
| Epic Garden Watering System | One bed per kit, 2, 3 or 4 ft wide and up to 10 ft long | 15 PSI minimum inlet; maximum not stated | In the Starter Kit | In the Starter Kit |
| Rain Bird GARDENKIT A51255 | Up to 32 sq ft across one or more beds | 25 PSI regulator output; inlet range not stated | Not included | Not included |
| Vego Irrigation Kit | The Vego bed arrangements in its manual table | 20–80 PSI working inlet range | Not included | Not included |
| DripWorks Garden Bed Irrigation Kit | 3, 9 or 18 beds of about 4 × 8 ft (Small, Medium, Large) | 15 PSI minimum; regulated to 30 PSI (20 PSI in the Large kit) | Only in the With Timer version | Not included |
| Raindrip R581DT Raised Bed Watering Kit | Up to 150 sq ft or up to 2 garden beds | No pressure figure published | Sold separately | Not listed |
| Garden In Minutes Garden Grid 4 × 8 | One 44 × 88 in grid inside a 4 × 8 ft bed | 10 PSI minimum; no maximum for home setups, the maker says | Sold separately | Not listed |
| DIG ML50 Raised Bed Drip Kit | Up to 150 sq ft | 25 PSI regulator included; 100 PSI maximum incoming | Not included | Included |
| Orbit Micro Bubbler Drip Kit 69525 | Up to 250 sq ft | No pressure figure published | Not listed | Not listed |
| Drip Depot Raised Bed Drip Irrigation Kit | 2, 4, 6, 8 or 10 beds of about 4 × 8 ft (Basic to Ultimate) | Operates at 5 to 25 PSI; regulated to 25 PSI | Sold separately | Included |
For a starter-and-expansion layout
A manifold and drip-tape system with a timer in the Starter Kit. Add an Expansion Kit for each additional bed.
The manifolds assemble for beds exactly 2, 3 or 4 feet wide and up to 10 feet long. The Starter Kit includes the backflow preventer.
For up to 32 square feet of beds
A complete GARDENKIT A51255 with a filter, regulator, distribution tubing and emitter tubing.
A timer is separate. Use the documented layouts within 32 square feet; larger areas need separate kits.
For a listed Vego bed arrangement
Small and Large sprinkler kits with different hose lengths, nozzles and brackets.
Choose by the manual’s exact bed-size table. Another brand’s bed is not automatically a bracket match.
For several 4 × 8 ft beds from one faucet
Three sizes of one soaker-dripline kit, each with a filter, a pressure regulator and mainline tubing.
Coverage is stated for beds of about 4 × 8 ft. Keep each dripline run to 28 feet. No backflow preventer is in the box.
For one or two beds
Supply tubing, micro dripline and a pressure regulator with a filter, stated to water up to 150 square feet or two garden beds.
The guide gives no pressure figures for this kit. A timer is sold separately.
For one 4 × 8 ft bed, with no tubing to lay
A 44 × 88 inch grid of watering squares that sits inside the bed and runs from a garden hose.
The maker says it fits inside most 4 × 8 ft beds. Other bed sizes need another grid size.
For up to 150 square feet, with backflow protection
A backflow preventer, a 25 PSI regulator, 50 feet of 1/2-inch tubing and 50 feet of 1/4-inch dripline with emitters every 9 inches.
Keep each dripline run to 28 feet. DIG recommends a finer 155-mesh filter, not included, if your water carries sediment.
For a few large plants across several beds
Eight adjustable micro-bubblers on stakes, fed by 1/4-inch tubing from a 1/2-inch line, stated to cover up to 250 square feet.
Eight bubblers water eight spots, so it suits tomatoes, peppers or squash better than rows of greens. Orbit’s page gives no pressure figures.
For 2 to 10 beds, with an on/off valve for each
Five sizes of one kit, each with a backflow preventer, a filter and a 25 PSI regulator, 1/2-inch mainline, 1/4-inch dripline and drippers for single plants.
Coverage is stated for beds of about 4 × 8 ft. Keep each 1/4-inch run to 30 feet. A timer is sold separately.
A tube’s nominal size does not tell you its inside and outside diameters, and a hose diameter does not identify the faucet thread. Start with the kit’s own connection parts. If you need an adapter, both sides must match the actual threads or fittings.
What each part does and the sizes that fit together: pressure regulators, filters, 1/4-inch dripline, 1/2-inch tubing, fittings, hose-end timers, backflow preventers and, for beds near a lawn zone, sprinkler-to-drip converters. All eight are on the drip parts page.
To count dripline, emitters and fittings for your own beds, use the drip line and parts calculator.