Hepworth, with a reputation for innovation & leadership across all its market sectors supplies some 40 countries worldwide & they are one of the UK's leading supplier for plumbing, heating & drainage products.Â� PlumbNation & Hepworth are proud to supply customers with Hep20 pipe & fittings, underfloor packs & underfloor components at the cheapest prices available.Â� Hepworth's Hep20 flexible push-fit plumbing system is a comprehensive range of pipes & fittings for domestic water supply & heating systems.