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Free Samples
See the finish before you commit
Trade Account
Trade prices on every range
Expert Advice
Speak to our team · 020 4634 2203
Free Delivery
On orders over £300
Sold By The m²
Calculator on every tile and floor
Klarna & PayPal
Spread the cost, subject to status

Trade Prices
Always trade prices, never retail markup.
UK Delivery
£50 flat rate • up to 20 business days.
FENSA Fitting
Professional install available.
by Linx Square
SKU: 169744
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Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT
Plumbright Polybutylene Barrier Pipe The Plumbright Polybutylene Barrier Pipe is designed for reliable hot and cold water distribution and wet underfloor heating systems. Manufactured from durable polybutylene with an integrated oxygen barrier layer, this flexible plumbing pipe helps protect heating systems from oxygen ingress while delivering dependable long-term performance in domestic and light commercial installations. Suitable for use with push-fit and compatible plumbing systems, this barrier pipe offers excellent flexibility for faster routing through floor constructions, joists, and confined spaces. Its lightweight construction makes installation easier for both professional installers and DIY users. Key Features and Benefits Polybutylene barrier pipe suitable for plumbing and wet underfloor heating applications Integrated oxygen barrier helps protect heating components from corrosion Flexible design for easier installation around corners and obstacles Compatible with push-fit plumbing systems and suitable fittings Suitable for hot and cold water distribution systems Lightweight and easy to handle on-site Designed for long-term durability and dependable performance WRAS approved for potable water applications Manufactured to recognised UK plumbing standards Suitable Applications and Compatibility This barrier pipe is suitable for a wide range of domestic plumbing and heating projects, including wet underfloor heating systems, radiator circuits, and potable water distribution. Its flexibility makes it ideal for floor build-ups, screeded floors, suspended timber floors, and retrofit installations where ease of routing is important. Compatible with a range of plumbing fittings and push-fit systems, the pipe can be integrated into new heating installations or system upgrades where reliable water flow and system protection are required. Role In Underfloor Heating Barrier pipe plays a critical role in wet underfloor heating systems by helping prevent oxygen permeation into the heating circuit. This helps reduce the risk of corrosion within system components such as pumps, manifolds, valves, and heat sources, improving system longevity and maintaining heating efficiency. The pipe’s flexibility also supports quicker installation and smoother routing through floor constructions, helping installers achieve cleaner layouts with fewer joints and reduced installation time. Guidance Always install in accordance with current building regulations, manufacturer recommendations, and recognised plumbing practices. Ensure compatible fittings and system components are used throughout the installation. Pressure testing should be completed before final floor finishes are applied. For wet underfloor heating applications, the pipe should be installed with the correct fixing system and spacing arrangement to achieve optimal heat distribution and system efficiency. Technical Overview Manufactured from durable polybutylene material Integrated oxygen barrier layer for heating system protection Suitable for hot and cold plumbing systems Suitable for wet underfloor heating installations WRAS approved for potable water use Manufactured to BS7291 standards Designed for long service life and reliable performance