Brett Martin Single Socket Level Invert Reducer (400mm x 315mm)

Key Features & Benefits

• Maintain Straight Invert Lines: The level invert configuration (also known as an eccentric reducer) ensures the bottom of the pipeline remains entirely flat, preventing sediment build-up and keeping water flowing efficiently.
• Secure Captive Seal Technology: Features an advanced single-socket design with an integrated lip seal.This structural ring guarantees a completely watertight joint that effectively resists ground shifting, soil pressure, and root intrusion.
• Industrial-Grade PVC-U Built: Manufactured using heavy-duty unplasticised PVC, delivering exceptional resistance to underground chemicals, impact damage, and long-term environmental degradation.
• Fully Certified & Kitemarked: Rigorously tested and fully compliant with BS EN 1401-1 (or historical standard BS 5481), carrying the recognized safety Kitemark for absolute peace of mind during building inspections.
• Installer-Friendly Handling: Combining high structural integrity with a lightweight profile (approx. 1.5kg), this fitting is remarkably easy to position, adjust, and joint on-site.

Streamline your civil or residential drainage installation with the premium Brett Martin Single Socket Level Invert Reducer (B40115). Expertly designed for non-pressure underground sewer systems, this fitting allows for an immediate, smooth reduction from a 400mm diameter pipe down to a 315mm pipe without disrupting the straight bottom flowline (invert) of the channel.

Technical Specifications

• Manufacturer: Brett Martin

• Product Code / MPN: B40115

• Size Profile: 400mm (approx. 16") to 315mm (approx. 12.5")

• Type: Single Socket Level Invert Reducer / Taper

• Material: Premium PVC-U

• Color: Terracotta / Golden Brown

• Compliance Certification: BS EN 1401-1 / Manufactured under ISO 9001:2015

Please note all prices are website prices only! They may vary from the branches.

We have a few options for payment. You can use a credit/debit card, we accept payment from all major credit and debit cards or you can use PayPal or Amazon Pay to process the payment. If you are paying by credit or debit card, Moneybookers processes the payment. We take the security of your details seriously; Moneybookers has several security features and checks in place to ensure this. Therefore, you can be assured when ordering on Beatsons your details are safe. If you need more information please contact us.