Swell Pond Liner 10x7m with Free Underlay – 40 Year Guarantee for Garden, Fish and Koi Ponds

Description

Product details

Product information

The Swell HDPE Pond Liner is a best-selling choice for wildlife ponds, Koi ponds, and large garden water features. Made from durable 0.35mm HDPE (High-Density Polyethylene), it’s UV-resistant, flexible, and built to last – now with a 40-year guarantee and free heavy-duty protective underlay included for added puncture resistance. Whether you’re building a small garden pond or a large ornamental feature, this easy-to-install liner provides a long-lasting, watertight seal. The included underlay protects against sharp stones and roots, helping to prevent leaks and extend liner life. Available in over 20 sizes – from 2.5×2.5m to 30x40m – simply choose the right size using a Pond Liner Calculator and we’ll match the correct underlay for you.

• Long lasting colour
• UV resistant

Features and benefits

Build a lasting pond with the Swell HDPE Pond Liner, featuring a 40-year UV guarantee and free heavy-duty protective underlay. Tough, flexible, and easy to install, this durable liner keeps your garden, wildlife, or Koi pond watertight and protected from punctures – perfect for ponds big or small.

• [40-Year UV Guarantee] Long-lasting protection against sun damage – ideal for permanent outdoor ponds.
• [FREE Heavy-Duty Underlay Included] Premium underlay guards against punctures from sharp stones and roots.
• [Strong, Flexible HDPE Liner] 0.35mm thick – durable yet flexible enough for shaped and sloped ponds.
• [Wide Range of Sizes] Over 20 options from small patio ponds to large-scale lake liners.
• [Easy DIY Installation] Simple to handle and fit – perfect for garden, Koi, and wildlife pond projects.