• It acts as a protective barrier against the release of odours and the corrosive properties of sewer gases.
• Manhole Cover and Frame is fitted with a Sealing Plate to prevent ingress as well as the escape of toxic odour.
• GRP plate acts as a protective barrier against the release of odours and the corrosive properties of sewer gases.
• The integral push-fit rubber seal is bonded during manufacture to match the dimensions of the appropriate frame, thus, allowing a perfect push fit on the frame.
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