Brassware manufacturer Methven has launched its latest product guide – The One Book – showcasing its latest range of premium showers, taps and accessories.

Over 220 pages, the 2025 One Book features collections from both Methven and Deva by Methven and covers pricing, sustainability and certifications.

It includes shower packs featuring Como and Wai shower valves, as well as a variety of colour with Brushed Brass available on more than 20 products, as well as chrome and more recently black.

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Head of marketing and product at Methven Emma Foster said: “We’re delighted to launch the new One Book, bringing together our entire product range in one convenient package for customers.

“Our portfolio is always developing in line with the requirements of our customers and wider design trends, so we’re confident that we can offer the most comprehensive, high quality range of products possible.”

Methven recently renewed its Carbon Neutral certification for the third year running and backed the Bathroom Manufacturers Associations’ call for mandatory thermostatic mixing valves to reduce the risk of scalding.

As such, key sustainability and safety information relating to its products and practices appear throughout, from waste recycling practices to water label and TMV approvals.

The brand’s Water Saving Calculator, an online tool to help inform customers of the potential cost and water savings associated with measures such as replacing a shower head, is also given a spotlight.

Completing The One Book is also a guide on how Methven’s water saving products can support with Part G building regulations.

Emma Foster said: “The One Book isn’t just about our products; it’s about sharing the insights we have to support our customers and educate on the major positive impact water saving products can have.”