Cellfast 57-058 Ideal™ Extension Connector with Reduction, 1-inch
Product description
For gardeners joining a 1-inch hose to a smaller hose with a quick connector, the Cellfast 57-058 provides a practical link. Its reduction is designed for connectors sized 1/2–5/8 inch or 3/4 inch. It can also join two hoses to extend the watering reach. The grey plastic coupling suits everyday garden hose connections.
Size & fit
Use this connector to make a temporary reduction connection between a 1-inch hose and a hose fitted with a 1/2–5/8-inch or 3/4-inch quick connector. That makes it useful when the hoses you want to connect are different sizes, rather than when you simply need a like-for-like coupling. The connector type is a coupling, and the product is described as suitable for common garden hoses in the relevant sizes.
For example, it can connect a larger hose to a smaller hose already fitted with a compatible quick connector, helping you extend the hose run for watering. The added reach can make it easier to get water to different corners of the garden without changing the watering task. The connector is marked as a universal fit and is stated to match Cellfast and other brands’ watering products.
Why it’s worth it

A single fitting handles the size transition as well as the connection between hoses. This is a useful distinction from a standard coupling intended to join hoses of the same size: the reduction makes it possible to connect the specified 1-inch hose with a hose using one of the smaller quick-connector sizes. It offers a straightforward way to make use of the hoses already set up for your garden.
The plastic body keeps the connector lightweight, while its compact dimensions make it easy to handle when assembling or changing a hose run. For routine watering, connect the relevant hose ends and use the extended run to reach beds or other areas further from the original hose position. The maximum pressure is 6 bar (87 psi), providing a clear operating figure for planning the connection.


Key specifications
- Type: Extension connector with reduction, coupling
- Size: 1 inch and 3/4 inch
- Compatible quick connector sizes: 1/2–5/8 inch, 3/4 inch
- Material: Plastic
- Colour: Grey
- Dimensions: 6.7 x 2.9 x 2.9 centimetres
- Weight: 0.01 kilograms
- Maximum pressure: 6 bar (87 psi)
- Model: 57-058
Before you decide

What hose sizes does the reduction connect? It is designed for a 1-inch hose and a hose fitted with a 1/2–5/8-inch or 3/4-inch quick connector. Match the connector to those specified hose sizes when setting up your run.
Can it be used to extend a hose? Yes. It firmly connects two hoses together, and the reduction allows the specified size transition as part of that connection.
What is the maximum pressure? The stated maximum pressure is 6 bar (87 psi). Keep this figure in mind when using the connector as part of a garden watering setup.
When it makes sense
Choose the Cellfast 57-058 when your watering setup calls for a connection between a 1-inch hose and a smaller hose with one of the specified quick connectors. Its reduction, compact plastic construction and stated pressure limit make it a practical fitting for extending a garden hose run while accommodating that size change.
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