£50 each when buying all 5 together. The Gully Grate Frame D400 is a hinged ductile iron frame measuring 430mm x 370mm x 100mm, designed by Clark Drain. This product is specifically designed for use with gully gratings to help prevent debris and blockages from entering the drainage system. The durable and robust construction of the frame ensures a secure and reliable fit for the gully grate, providing a practical solution for maintaining proper drainage in various industrial, commercial, and residential settings.