Oase Stepped Hosetail 1½ Inch

Oase Stepped Hosetail 1½ Inch

Multi-Size Replacement Hose Connector for Compatible Pond Pumps and Water-Circulation Equipment

The Oase Stepped Hosetail 1½ Inch is a genuine replacement connection fitting designed to connect compatible pond pumps and water-circulation equipment to flexible pond hose. Featuring a practical three-stage design, the hosetail can accommodate several commonly used hose diameters, making it a versatile component for pond filtration, pump, waterfall, fountain, and general water-movement installations.

The fitting is identified by Oase product code 25218 and is manufactured as a black stepped hose tail with a maximum listed size of 1½ inches. Specialist Oase spare-parts information identifies the available hose stages as approximately 25mm, 32mm, and 40mm, corresponding to commonly used pond-hose connections of around 1 Inch, 1¼″, and 1½ Inch.

Its stepped construction gives pond owners and installers several connection options in one compact fitting. Rather than using a separate adaptor for each hose diameter, the hose can be matched to the appropriate stage of the hosetail. This makes the connector especially useful when replacing a missing original fitting, changing an existing hose size, or reconnecting compatible equipment after maintenance.

Flexible hose is frequently used to carry water between pond pumps, filters, ultraviolet clarifiers, waterfalls, fountains, and return outlets. The Oase Stepped Hosetail provides the connection point between compatible equipment and the selected flexible hose, helping create a straightforward water route through the pond system.

The raised sections along the hosetail are designed to provide defined seating areas for the hose. Once the correctly sized flexible hose has been pushed securely over the appropriate step, a suitable hose clip can be positioned around the connection to help hold the hose in place.

Where permitted by the equipment instructions, unused smaller stages may be carefully removed when connecting a larger-diameter hose. This can help avoid leaving a smaller opening in the water path. The correct hose diameter and cutting point should always be confirmed before modifying the fitting, as a removed section cannot be restored.

The fitting is particularly useful as a replacement spare part. Original hosetails may become lost during equipment storage, damaged during maintenance, cracked through accidental impact, or unsuitable after changes to the pond’s hose layout. Replacing the connector with the correctly identified Oase component helps restore the intended hose connection without relying on a complicated collection of reducers and adaptors.

It may also be used when pond equipment is repositioned. Moving a pump, filter, or water feature can change the hose length or diameter required for the installation. The stepped connector offers several hose-size options, helping installers adapt the connection to the revised system where the equipment is compatible.

The compact design is suitable for filter houses, pump chambers, pond edges, and landscaped areas where available space may be limited. Flexible hose can be routed around obstacles more easily than rigid pipework in many installations, while the hosetail provides a defined connection at the equipment outlet.

A specialist Oase parts retailer lists product code 25218 as compatible with selected Pontec PondoMax Eco filter pumps, including the 3500, 5000, 11000, 14000, and 17000 models. The same source specifically states that it does not fit the PondoMax Eco 1500 or 2500. Because equipment generations and fittings may vary, the product code should be checked against the pump manual or parts diagram before ordering.

Whether required for replacing an original connector, completing a new flexible-hose installation, repairing a pond circulation system, or changing the hose diameter connected to compatible equipment, the Oase Stepped Hosetail 1½ Inch provides a simple and versatile pond-plumbing solution.

Features

• Genuine Oase replacement spare part
• Product code 25218
• Three-stage stepped hose connection
• Maximum listed size of 1½ Inch
• Supports several commonly used flexible pond-hose sizes
• Identified hose stages of approximately 25mm, 32mm, and 40mm
• Black finish
• Connects compatible pond equipment to flexible hose
• Suitable for replacement, repair, and installation projects
• Reduces the need for several separate hose-size adaptors
• Compact design for pond-equipment installations
• Suitable for compatible pumps and water-circulation systems

Available Hose Connections

Specialist spare-parts information identifies the following hose stages:

• 25mm / approximately 1 Inch
• 32mm / approximately 1¼″
• 40mm / approximately 1½ Inch

The hose should be matched to the correct stage before installation. Hose dimensions can vary slightly between manufacturers, so the actual internal hose diameter should be checked.

When to Use

• Replacing a missing Oase or compatible pump hosetail
• Replacing a cracked or damaged hose connector
• Connecting flexible pond hose to compatible equipment
• Changing an installation to a different hose diameter
• Reconnecting a pond pump after maintenance
• Installing water circulation between a pump and filter
• Connecting compatible equipment to a waterfall or water feature
• Repairing an existing pond-hose installation
• Relocating a pond pump or other compatible equipment
• Keeping a correctly identified spare connector for maintenance

How It Works

The hosetail provides three progressively sized connection stages.

First, identify the internal diameter of the flexible hose. Match the hose to the corresponding stage on the connector.

Where the instructions for the connected equipment permit it, smaller unused stages may be removed before installing a larger hose. This should be done carefully at the correct cutting point.

Slide a suitably sized hose clip loosely over the flexible hose. Push the hose firmly onto the selected stage until it is properly seated.

Move the hose clip into position over the connection area and tighten it gradually. The clip should secure the hose without cutting into, crushing, or seriously deforming it.

Once the pump or water-circulation system is operating, check the connection for movement or water leakage.

General Installation Instructions

1. Switch off and electrically isolate the pond pump.
2. Confirm that Oase product code 25218 is correct for the equipment.
3. Check the internal diameter of the flexible hose.
4. Identify the appropriate hosetail stage.
5. Confirm the correct cutting point if modification is required.
6. Cut only where permitted by the equipment instructions.
7. Remove any rough edges or loose debris.
8. Place a suitable hose clip over the hose.
9. Push the hose fully onto the selected connection stage.
10. Position and tighten the hose clip evenly.
11. Support the connected hose to reduce strain on the equipment outlet.
12. Restore water flow and inspect the connection for leakage.

Installation Tips

Check the Product Code

Several stepped hosetails may look similar. Confirm product code 25218 against the equipment manual, spare-parts diagram, or original connector.

Measure the Hose Correctly

Flexible pond hose is generally selected by its internal diameter. Do not rely only on the external measurement or visual appearance of the hose.

Do Not Cut Prematurely

Confirm the required hose size before removing any stepped section. Cutting the wrong section may make the fitting unsuitable for the intended hose.

Use an Appropriate Hose Clip

Choose a clip that matches the hose diameter. Tighten it sufficiently to secure the connection, but do not overtighten it and damage the hose or fitting.

Avoid Tight Hose Bends

Allow enough space for the hose to leave the connection without immediately bending sharply. A tight bend may restrict the water route or place sideways pressure on the fitting.

Support Long Hose Runs

Do not allow a long, heavy, or water-filled hose to hang entirely from the equipment connection. Support the hose where required to reduce stress on the pump outlet.

Why Selecting the Correct Step Matters

Using the appropriate hose stage can help:

• Create a better-fitting hose connection
• Reduce the need for additional reducers
• Avoid excessive stretching of the hose
• Prevent the use of an unnecessarily loose connection
• Maintain a clearer water route
• Reduce strain on the equipment outlet
• Produce a cleaner pond-plumbing installation
• Make future maintenance easier

The complete water flow will also depend on the pump, hose length, vertical lift, valves, bends, filters, and other restrictions in the system.

Listed Compatibility

A specialist Oase spare-parts retailer lists product code 25218 for the following selected Pontec pumps:

• PondoMax Eco 3500
• PondoMax Eco 5000
• PondoMax Eco 11000
• PondoMax Eco 14000
• PondoMax Eco 17000

The same listing states that the fitting does not fit:

• PondoMax Eco 1500
• PondoMax Eco 2500

Always verify compatibility using the exact product code and equipment documentation.

Product Specifications

Brand: Oase
Product Name: Oase Stepped Hosetail 1½ Inch
Product Code: 25218
Product Type: Stepped flexible-hose connector
Maximum Listed Connection: 1½ Inch / approximately 40mm
Identified Hose Stages: 25mm, 32mm, and 40mm
Approximate Imperial Sizes: 1 Inch, 1¼″, and 1½ Inch
Number of Stages: Three
Colour: Black
Primary Function: Connecting compatible pond equipment to flexible hose
Suitable Uses: Replacement, repair, installation, and hose-size adaptation

Ideal For

• Compatible Oase and Pontec equipment
• Pond pump hose connections
• Filter-pump installations
• Flexible pond-hose systems
• Waterfalls and water features
• Pond water-circulation systems
• Replacement spare-part projects
• Pump maintenance and repairs
• Filter-house hose connections
• Garden pond owners
• Pond maintenance professionals

Related Oase Hose Connection Parts

If you are replacing or adapting an Oase hose connection, it is worth checking the thread size, hose size and seal at the same time before ordering.

• For larger Oase hose connections, see the Oase Stepped Hosetail 2 Inch.
• For hose-to-hose joins or reducers, see the Oase Universal Hose Connector 1½ Inch and Oase Universal Hose Connector 1 Inch.
• Finish the connection with suitable Stainless Steel Hose Clips.