Pennine Top Hat Units – Rigid & Flexible (110mm & 160mm)

Pennine Top Hat Units – Rigid & Flexible (110mm & 160mm)Pennine Top Hat units are preformed sleeves designed to create an airtight seal around service pipe penetrations. Available in rigid polypropylene or flexible TPE with a Jubilee Clip, these units provide a reliable barrier in applications such as attenuation tanks or pipe entries through membranes. Lightweight, durable, and simple to install, theyre manufactured to ISO 9001 standards using recycled plastics and are fully recyclable at end of life.

How do I install it

Strong yet lightweight for easy handling on site

or outbuildings

UV-inhibited polypropylene

Zero waste – only order what you need

Suitable for domestic landscaping

or summer houses

Can I use these crates under a driveway

Multiple tanks can be daisy-chained using a linking kit

Polypropylene

Civil engineering and infrastructure projects

Lay the membrane flat over the contaminated area