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Britax Romer DUO PLUS Group 1 Cosmos Black Car Seat


Product DetailsEasy Returns


The DUO PLUS combines installation flexibility with a unique innovation from Britax. Compatible with ISOFIX or 3-point seat belt installation the seat caters to any car. While its pioneering Pivot Link System ensures reduced frontal movement in the event of an accident.

Comfort without compromise - deep, padded side wings, multi-position recline Perfect fit - height-adjustable headrest and harness with easy single-handed adjustment Lightweight - easy to transfer between cars Practicality in mind - removable, padded cover

INSTALLATION 3-point seat belt ISOFIX ISOFIX and Top Tether (available separately)

INSTALLATION INDICATORS/GUIDES Indicators confirm the ISOFIX hooks are engaged

IMPACT PROTECTION Deep, protective side wings Our soft, padded side wings act as a protective cocoon that helps to absorb the force from a side impact, reducing the risk of injuries to your child. Pivot Link system to reduce forward movement Performance chest pads to reduce forward movement

HARNESS 5-point harness

SEAT Multi-position recline

Guarantee: 2 Year guarantee for manufacturing or material defects on all products for two years. Warranty begins on the date of purchase. Please retain receipt as proof of purchase and complete your warranty card if available.

Please note: If installing with ISOFIX, a Top Tether Strap is required. When fitting in certain cars, an Impact Mat must be placed under the seat fabric. Please check if your car is listed here.

Fitting Instructions


  • Sizes Available

    H 64cm x W 45cm

  • Colour Group


  • Material


  • Car Seat Group

    Group 1

  • Pack Size

    One car seat

  • Brand

    Britax Romer

  • Fitting Type

    ISOFIX and Belted

  • Child Weight

    9-18kg (approx 9 months to 4 years)

  • Type

    Car Seats

  • Direction Of Travel


  • Age Suitability

    From 9 months to 4 years

Easy Returns

We hope you love this product, but if you decide it's not right, you can return it for free.

We will willingly refund or offer an exchange within 28 days of purchase, provided you have proof of purchase and the product is unused and in its original packaging.

The fastest way to return or exchange is to visit one of our stores. Alternatively, you can return your item via Collect+ if it weighs less than 10kg and is smaller than 60x50x50cm, or you can contact us to arrange a return.

Exclusions apply, for more information, please see our full returns policy.

Your statutory rights are not affected.

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