Here’s a list of some leading national suppliers of Natural Rubber (NR) Hoses in the United Kingdom:

```markdown

Leading Suppliers of Natural Rubber Hoses in the UK

1. Hose & Hydraulics Ltd

   • Specialty: Industrial hoses and fittings
   • Website: hoseandhydraulics.com

2. Flextech Hose Solutions

   • Specialty: Custom hose assemblies and NR hoses
   • Website: flextech.co.uk

3. Pirtek

   • Specialty: Hydraulic and industrial hose solutions
   • Website: pirtek.co.uk

4. Rugby Hose & Accessory Company

   • Specialty: Industrial hose products including NR hoses
   • Website: rugbyhose.com

5. Hose Supplier Ltd

   • Specialty: Comprehensive hose solutions and NR products
   • Website: hosesupplier.co.uk

6. Trelleborg Industrial Hose

   • Specialty: Engineered and specialized hose products
   • Website: trelleborg.com

7. Dunlop Hiflex

   • Specialty: Industrial hoses, including NR hose lines
   • Website: dunlophiflex.com

8. Fluid Transfer Solutions

   • Specialty: Hose assemblies and fluid transfer solutions
   • Website: fluidtransfer.co.uk

9. Suction and Delivery Hoses Ltd

   • Specialty: Manufacturing of custom hoses including NR hoses
   • Website: suctionanddeliveryhoses.co.uk

10. Hoseworld Ltd

    • Specialty: A wide range of hoses, including natural rubber options
    • Website: hoseworld.com ```

Please verify the latest information on their websites as companies may update their product lines or availability.