10 Best Cat Flap with Extendable Tunnel for Cavity Wall in the UK 2025

Updated on 26/07/2025
#1
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  • Accommodates large cats and small dogs with a shoulder height of up to 14 inches, including breeds like Yorkshire Terriers, Pekinese, and Dachshunds.
  • Features a secure 4-way locking mechanism that allows for customizable access - in and out, in only, out only, or completely locked.
  • Includes a fully brush-sealed flap that is draught- and weather-proof, equipped with a magnetic closure.
  • Designed with a rain-proof seal to keep the interior dry.
  • Operates silently for a non-disruptive experience.
  • Ensure to check the diameter of pre-cut holes before purchasing.
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  • Accommodates large cats and small dogs with a shoulder height of up to 14 inches, including breeds like Yorkshire Terriers, Pekinese, and Dachshunds.
  • Features a secure 4-way locking mechanism that allows for customizable access - in and out, in only, out only, or completely locked.
  • Includes a fully brush-sealed flap that is draught- and weather-proof, equipped with a magnetic closure.
  • Designed with a rain-proof seal to keep the interior dry.
  • Operates silently for a non-disruptive experience.
  • Ensure to check the diameter of pre-cut holes before purchasing.
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#2
Value for Money
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  • Four locking modes: In only, Out only, In & Out, and Closed, easily controlled by a knob.
  • Dimensions: 5.9 inches wide by 6.1 inches high, designed for cats with a waistline under 16.1 inches.
  • Quiet operation with non-direct contact magnet and brush; transparent panel allows pets to see through.
  • Versatile installation options for walls, wood, or UPVC doors, with an easy-to-follow installation diagram included.
  • Made from durable ABS material to withstand daily use; customer support available for any inquiries.
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  • Four locking modes: In only, Out only, In & Out, and Closed, easily controlled by a knob.
  • Dimensions: 5.9 inches wide by 6.1 inches high, designed for cats with a waistline under 16.1 inches.
  • Quiet operation with non-direct contact magnet and brush; transparent panel allows pets to see through.
  • Versatile installation options for walls, wood, or UPVC doors, with an easy-to-follow installation diagram included.
  • Made from durable ABS material to withstand daily use; customer support available for any inquiries.
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#3
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  • Simple installation by adding 5 cm to the Microchip and Manual Cat Flaps
  • Accommodates thicker doors and walls for a flush fit
  • Creates a comfortable entryway for cats with extended tunnel length
  • Glue-in installation requires no tools for secure fitting
  • Designed specifically for compatibility with PetSafe Microchip and Manual Cat Flaps
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  • Simple installation by adding 5 cm to the Microchip and Manual Cat Flaps
  • Accommodates thicker doors and walls for a flush fit
  • Creates a comfortable entryway for cats with extended tunnel length
  • Glue-in installation requires no tools for secure fitting
  • Designed specifically for compatibility with PetSafe Microchip and Manual Cat Flaps
#4
14% Off
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  • Paintable to match any color
  • Expandable with additional sections
  • Compatible with 305, 306, and 307 doors
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  • Paintable to match any color
  • Expandable with additional sections
  • Compatible with 305, 306, and 307 doors
#5
6% Off
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  • made of durable plastic
  • features a transparent flap for silent operation
  • equipped with a 360° TPR seal and magnetic clasp
  • includes a convenient screw top
  • comes with 2 tunnel elements for use with walls and deep doors
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  • made of durable plastic
  • features a transparent flap for silent operation
  • equipped with a 360° TPR seal and magnetic clasp
  • includes a convenient screw top
  • comes with 2 tunnel elements for use with walls and deep doors
#6
8% Off
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  • Facilitates straightforward wall installation
  • Can be painted for seamless integration with decor
  • Compatible only with Cat Mate cat flaps reference 234 and 235
  • Extends tunnel length by 50 mm (2 inches)
  • Includes clear, easy-to-follow instructions
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  • Facilitates straightforward wall installation
  • Can be painted for seamless integration with decor
  • Compatible only with Cat Mate cat flaps reference 234 and 235
  • Extends tunnel length by 50 mm (2 inches)
  • Includes clear, easy-to-follow instructions
#7
19% Off
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  • made of durable plastic
  • features a transparent flap and operates silently
  • includes a 360° circumferential TPR seal and a secure magnetic clasp
  • designed with a convenient screw top
  • expandable with additional tunnel elements
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  • made of durable plastic
  • features a transparent flap and operates silently
  • includes a 360° circumferential TPR seal and a secure magnetic clasp
  • designed with a convenient screw top
  • expandable with additional tunnel elements
#8
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  • Facilitates installation of the SureFlap Microchip Cat Flap in walls
  • Extends the existing tunnel length by 50mm, adding to the standard 70mm
  • Multiple extensions can be combined to achieve the desired tunnel length
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  • Facilitates installation of the SureFlap Microchip Cat Flap in walls
  • Extends the existing tunnel length by 50mm, adding to the standard 70mm
  • Multiple extensions can be combined to achieve the desired tunnel length
#9
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  • Quick and straightforward installation, adding 5 cm to the Microchip Cat Flap and Manual Cat Flap.
  • Accurately fits thicker walls and doors for enhanced stability.
  • Extends entryway for a more comfortable cat access.
  • No tools required; glue each Tunnel Extension for a secure hold.
  • Designed specifically for PetSafe Microchip Cat Flap (PPA19-16811) and Manual Cat Flap (PPA19-16731).
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  • Quick and straightforward installation, adding 5 cm to the Microchip Cat Flap and Manual Cat Flap.
  • Accurately fits thicker walls and doors for enhanced stability.
  • Extends entryway for a more comfortable cat access.
  • No tools required; glue each Tunnel Extension for a secure hold.
  • Designed specifically for PetSafe Microchip Cat Flap (PPA19-16811) and Manual Cat Flap (PPA19-16731).
#10
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  • 4-way locking mechanism for flexible access options for small to average-sized cats.
  • Easy installation with a trim-to-fit door liner, suitable for doors, panels, or walls.
  • Constructed from durable polymer for secure and quiet operation.
  • Compatible with UPVC, metal, or wooden doors and walls; precise cut-out and flap opening dimensions provided.
  • Fully sealed flap ensures protection against drafts and rain with a magnetic closure.
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  • 4-way locking mechanism for flexible access options for small to average-sized cats.
  • Easy installation with a trim-to-fit door liner, suitable for doors, panels, or walls.
  • Constructed from durable polymer for secure and quiet operation.
  • Compatible with UPVC, metal, or wooden doors and walls; precise cut-out and flap opening dimensions provided.
  • Fully sealed flap ensures protection against drafts and rain with a magnetic closure.
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