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Below Ground

Backflow Valves
Backflow Valves

The Harmer SML system, with its comprehensive range of fittings and accessories, offers an innovative, whole-building solution for soil, waste and rainwater drainage installations. The system is fully compatible with other market-leading Harmer and Wade drainage products, including roof, floor, shower and channel drains

The Harmer SML socketless lightweight cast iron soil and waste system is BBA certified and meets the Standard of BS EN 877. The SML system combines modern, state-of-the-art drainage technology with the unique characteristics and benefits of cast iron as a preferred material for drainage installations

Download the Harmer SML Lightweight Cast Iron Soil & Waste Technical Brochure from our downloads page.

* PLEASE NOTE: Free delivery threshold of £1,000 apply to these made-to-order products

N.B. These products are coming to the website soon! In the meantime they acn be ordered by Phone on 0800 644 44 26 or email sales@rainclear.co.uk

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  1. Backflow Valves 3

Link to an SML Waste blog image