Claber 8423 Water Timer & Double Tap Connector

What is the Claber 8423 water timer used for?

The Claber 8423 is an automatic tap-mounted water timer designed to control two separate irrigation lines from a single garden tap. It is ideal for watering different garden areas on independent schedules.

Is the Claber 8423 easy to program?

Yes. The timer uses a simple rotary dial system with 63 possible programmes, making setup quick and intuitive without complex digital menus.

What watering durations are available?

Depending on the selected programme, watering durations typically range from a few minutes up to around 60 minutes per cycle.

What are the watering frequencies?

Once or twice per day, every 24 hours, on selective days (e.g. every 2, 3, or 7 days). The exact frequency depends on the chosen programme.

Does the Claber 8423 require batteries?

Yes. It operates using one 9V alkaline battery (not supplied). Battery life is designed to last an entire watering season under regular use.

Will it work with low water pressure?

Yes. The Claber 8423 works with water pressures from 0.5 bar up to 10 bar, making it suitable for most domestic garden taps.

What tap size does it fit?

It connects to a standard 3/4″ (20–27 mm) outdoor tap with a crew thread.

Can I use it with drip irrigation systems?

Yes. The Claber 8423 is suitable for drip and micro-irrigation systems; a pressure regulator is a practical additional option.

Is the Claber 8423 weatherproof?

Yes. The unit features sealed electronics and is designed for outdoor use. For protection, it should be removed and stored indoors during freezing winter conditions. So that you know, the manufacturer's warranty does not cover damage due to frost.

Does it include a filter?

Yes. A washable stainless steel filter is built into the valve mechanism to prevent dirt and debris from entering it.

What type of garden is the Claber 8423 best suited for?

It is ideal for smaller gardens, lawns and flower beds, greenhouses, vegetable patches, and sprinkler and drip systems.

What does the Claber 91589 do?

It allows you to connect two hoses, timers, or irrigation systems to a single outdoor tap.

What tap size does it fit?

It fits standard 3/4" (20–27 mm) male threaded garden taps, commonly used in the UK and Europe.

Can I control the water flow to each outlet separately?

Yes, each outlet has its own independent flow control, allowing you to adjust or shut off water to either side.

Is it compatible with hose connectors and timers?

Yes, it is compatible with standard Claber and other brand hose connectors, irrigation systems, and water timers that use 3/4" threads.

Is the connection watertight?

Yes, the adapter includes rubber seals designed to provide a leak-free, watertight connection when fitted correctly.

Can both outlets be used at the same time?

Yes, both outlets can be used simultaneously, depending on your water pressure and flow requirements.

What material is the adapter made from?

The body is made from durable ABS plastic, with POM control valves for smooth operation and longevity.

Is it suitable for year-round outdoor use?

It is designed for outdoor use, but like most irrigation fittings, it’s recommended to remove and drain it during freezing conditions.

Does it reduce water pressure?

Splitting a single tap into two outlets slightly reduces pressure, primarily if both outlets are used concurrently.

Is the installation tool-free?

Yes, it simply screws onto the tap by hand—no tools required.

Can I use one outlet and leave the other closed?

Yes, each outlet can be fully opened or closed independently.

Does it come with a warranty?

Both the water timer and dual tap connector have a two-year manufacturer’s warranty. The warranty excludes frost damage.

Water Timer and Dual Outlet Tap Connector Bundle

• Claber 8423 Aquauno Select water timer and Claber 91589 Dual Tap Connector
• Simple rotary dial with 63 preset watering programmes
• The tap connector has its own independent flow control, allowing you to adjust or shut off water to either outlet.
• Suitable for sprinklers, drip irrigation, and soaker hoses
• Battery operated (1 × 9V alkaline - not included)
• Built-in washable stainless steel filter
• Fully sealed electronics for outdoor use
• Fits standard 3/4″ (20–27 mm) garden taps
• Ideal for gardens, lawns, vegetable patches, and greenhouses