Auto Silicone Hoses

    Plastic Straight Reducing Joiner

    Colour: Black

    PSR012008-ASH

    £4.11
    £4.11

    Delivery/Collection

    Delivery

    Free Evri Standard delivery on all mainland UK orders over £40.

    Next Working Day Delivery is a paid-for service.

    • Royal Mail Tracked 24Next working day
    • Evri ExpressNext working day
    • FedEx ExpressNext working day
    • Royal Mail Tracked 482-3 working days
    • Evri Standard2-3 working days

    Delivery times are estimates and start from dispatch.

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    Address

    Silicone Hose UK

    HolmeBank Business Park, Station Road
    Unit 5
    Mirfield WF14 8NA
    Vereinigtes Königreich

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    Opening hours

    Monday 07:00 – 19:00
    Tuesday 07:00 – 19:00
    Wednesday 07:00 – 18:00
    Thursday 07:00 – 18:00
    Friday 07:00 – 17:00
    Saturday 07:00 – 13:00
    Sunday Closed

    Bank holidays may affect our opening hours and delivery times.

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    Return within 30 days for a full refund*. Learn More

    The Plastic Inline Straight Reducer Barbed Hose Joiner is a durable connector designed for joining hoses of different diameters in garden, pond, and water system applications. Manufactured from high-quality ABS plastic with a 2 mm wall thickness, it combines impact resistance with long service life in both indoor and outdoor environments. The precision 3D-printed barbed ends provide a secure grip on flexible hoses, ensuring a reliable connection without the need for adhesives or sealants. With a compact 75 mm body length and a matte surface finish, the joiner offers both practicality and a professional appearance for various installations.

    Key Features:

    • Material: ABS plastic construction for durability and strength.

    • Design: Straight barbed reducer for connecting hoses of different diameters.

    • Main Body Length: 75 mm for compact installation.

    • Wall Thickness: 2 mm for rigidity and durability.

    • Operating Temperature: -20°C to +105°C.

    • Applications: Garden hoses, pond systems, irrigation, and general-purpose water transfer.

    Built for reliability, the reducer joiner ensures a strong seal, preventing slippage and leaks even under moderate pressure. Its ABS construction provides resistance against cracking, ageing, UV exposure, and environmental wear, making it suitable for permanent outdoor use. Lightweight and easy to install, the straight joiner offers seamless transitions between hose sizes without restricting flow. Designed for versatility, it is available in a wide range of size combinations to accommodate different setups and system requirements.

    Applications include pond filtration, garden irrigation, water transfer systems, and general maintenance tasks where hoses of varying diameters need to be securely joined. Favoured by landscapers, pond keepers, and maintenance professionals, the Plastic Inline Straight Reducer Barbed Hose Joiner provides a cost-effective and dependable solution for water system connectivity.

    Size Guide
    Outside Diameter LargemmOutside Diameter Smallmm
    12 8
    16 13
    19 13
    19 16
    22 16
    22 19
    25 13
    25 16
    25 19
    28 22
    28 25
    32 19
    32 25
    32 28
    35 25
    35 28
    35 32
    38 19
    38 22
    38 25
    38 28
    38 32
    38 35
    40 35
    45 25
    45 32
    45 38
    48 30
    51 38
    51 45
    57 51
    60 51
    63 51
    70 51
    70 57
    70 60
    76 51
    76 55
    76 60
    76 63
    90 51
    90 60
    90 70
    90 76

    Measurements are nominal and may vary slightly.

    How to measure OD

    hose fits over OD bore OD = the surface the hose clamps onto
    1
    Measure across the outside
    Rigid pipe, tube and joiners are sized by the outer wall, because that is the surface a hose seals against. The bore and wall thickness follow from it — they are not the ordering size.
    2
    Use vernier calipers
    Set the outer jaws across the widest point. A tape measure round a curve reads low by a millimetre or two — enough to buy the wrong size.
    3
    Take three readings, keep the largest
    Rotate 60° between each. If they disagree the tube is oval; size to the biggest figure so the hose still clamps down evenly.
    4
    Match the hose to this OD
    The hose sleeves over the tube, so the hose you want is the one whose internal diameter equals this outside diameter. A 51 mm tube takes a 51 mm ID hose.
    Order by OD, always. Tube, rigid pipe and joiners are listed by outside diameter — the surface the hose clamps onto. Pair one with a hose of the same ID. On reducers, quote both ends, largest first.

    Construction
    Material
    ABS plastic construction
    Durability and strength
    Design
    Straight barbed reducer
    Connecting hoses of different diameters · -20°C to +105°C

    Plastic Straight Reducing Joiner

    What is it used for?
    Joining two hoses of different internal diameters in low-pressure water, pond, ducting and general workshop plumbing.

    How do I size one?
    Match the barb outside diameter to your hose internal diameter. It should need a firm push to go on - warming the hose end in hot water makes a tight fit far easier. If it slides on loosely it is too small. Available in outside diameters from 12mm to 8mm to 90mm to 76mm, in black, blue, red and white.

    Do I need clips?
    On anything pressurised, or anything that matters if it comes off, yes - one each side. The barb resists pull-off but does not seal on its own once the hose relaxes with age and temperature. A stainless clip is cheap insurance.

    When should I use metal or silicone instead?
    For anything pressurised, hot, or carrying fuel or oil. Plastic has neither the temperature range nor the strength for engine bay work. We stock aluminium beaded and unbeaded joiners from 8mm to 102mm and silicone couplers from 13mm to 152mm for those applications.

    What is it made from?
    ABS plastic, thick walled. That gives good strength for a plastic fitting, resistance to corrosion in constant contact with water, and a low cost. What it does not give is temperature range or strength for pressurised systems.

    What temperature will it take?
    It is a general-purpose ABS fitting for ambient and low-temperature use. Keep it away from engine bays, hot process fluid and exhaust heat, where you need metal or silicone. If you are unsure about your temperature, tell us and we will confirm.

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