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Your Realistic Model Railroad Tunnel Starts Here! 

Our model railroad tunnel portals, tunnel liners and retaining wall kits form a unique, complete system allowing you to set up your realistic N or HO scale model railroad train tunnels quickly and easily!

HO & N Scale Retaining Wall Example with Offset Panel

Tunnel Portals:​

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  • Produced in high quality 8K resin.

  • Available in either single or double track configurations.

  • Compatible with all popular brands of track.

  • Accommodate various track center spacings (double portals).

  • Designed in either a concrete or cut stone design.

  • Easily painted/weathered with removable concrete, brick or stone inlays.

  • Exceed NMRA clearance standards.

  • Engineered to accept our Tunnel Liner (sold separately).

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Tunnel Liners:

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  • Produced in high quality PLA filament.

  • Available in either single or double track configurations.

  • Compatible with all popular brands of track (curved and straight).

  • Available in 3" (N) and 4" (HO) straight sections.

  • Accommodate virtually any track radius in 15° curve sections.

  • Ordered in either a single or 3 pack.

  • Available in a base grey or brown color.

  • Feature a realistic rock surface interior and are easily painted/weathered.

  • Exceed NMRA clearance standards.

  • Engineered to fit into the rear of our Tunnel Portal (sold separately).

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Retaining Walls:

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  • Produced in high quality 8K resin.

  • Available in straight, left hand or righthand configurations.

  • Ordered in a starter kit, expansion kit or individually.

  • Designed in either a concrete or cut stone design.

  • Easily painted/weathered with removable concrete, brick or stone inlays.

  • Exceed NMRA clearance standards.

  • Engineered to fit onto our Tunnel Portal (sold separately).

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