QUOBAS WT41W Low-Pressure Water Timer with Brass Inlet and Outlet

The QUOBAS WT41W uses a straight-through ball valve to control watering in low-pressure setups, including rain barrels and gravity-fed irrigation. Its programmable controls let you set a start time, watering duration and interval, so garden care can follow a schedule instead of relying on manual starts.

A clear LCD and rain-delay, manual and automatic modes make it practical for hose-based watering at home or in a greenhouse.

What matters most

Many hose timers are chosen for use with a regular household tap. The WT41W also suits rain-barrel and gravity-fed systems, while handling standard household water pressure. That flexibility makes it useful when your water source is not limited to a pressurized tap. Brass inlet and outlet fittings are another defining feature.

Use the display to set watering durations from 1–240 minutes and choose a watering frequency, such as every 12 hours or every 3 days. For a garden bed that needs a regular soak, you can set the timing to fit the routine and let the timer manage the start and stop. What if rain is already doing the watering? Select a rain delay to pause the schedule rather than running irrigation through wet weather.

Everyday use

The timer attaches to a standard 3/4-inch garden hose without tools. Once installed, its LCD provides a direct way to manage the watering schedule, while automatic mode supports hands-free operation. Manual mode gives you another way to control watering when you want to run it outside the programmed routine.

For a rain barrel feeding drip irrigation, the low-pressure valve design is especially relevant: it is described as compatible with both drip systems and gravity-fed setups. The timer also suits lawns, gardens, greenhouses and outdoor washing tasks where scheduled hose control is useful.

Practical tips

Set the start time, duration and interval around the plants or area being watered. The duration range accommodates shorter or longer watering sessions, while frequency options let you choose a recurring interval. If rain is expected or has arrived, use the selectable 24-, 48- or 72-hour rain delay to pause watering temporarily.

The housing is rated IP54 to resist rain, moisture and outdoor elements. The timer is battery powered, batteries are not included. Its compact stated dimensions are 3D x 5W x 7H centimetres, with a listed weight of 227 g.

Before you decide

Can it be used with a rain barrel? Yes. The straight-through ball valve is designed for zero-pressure water sources and is described as compatible with rain barrels, gravity-fed setups and drip irrigation systems.

How can watering be scheduled? Use the LCD to set a start time, a duration from 1–240 minutes and a recurring frequency, including fixed intervals such as every 12 hours or every 3 days. Manual and automatic modes are available as well.

How does the rain delay work? Choose a 24-, 48- or 72-hour pause to temporarily hold scheduled watering during rainy weather. The unit runs on batteries, which are not included.

Should you buy it?

Choose the WT41W when you want programmable hose watering with the flexibility to work from a rain barrel or gravity-fed setup as well as a standard household water supply. Its interval scheduling, manual and automatic modes, and selectable rain delay make it a practical fit for garden and greenhouse routines where convenient control over watering times matters.