Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should contact Chris Bond on 020 75056816 OSMA SiTech is a new low-noise push-fit soil system available from Wavin Plastics, which provides a cost-effective and time-saving solution for plumbers. SiTech is made from a mineral-filled polypropylene, which increases pipe density so only needs to be encased in 25mm-thick mineral-wool wrap.