Mechanical Soil Pipe Boss Connector for 57mm hole saw size, supplied with fixing tool and suitable for 4″/110mm soil pipe Suits 4″/110mm soil pipe size Available in black or grey Available for 1″ and 1″ waste pipe size Suitable for waste water and condensate discharge Simple dry fixing mechanical connection Universal connection for pushfit or solvent weld waste pipe Suits 57mm hole saw size Supplied with Fixing Tool Conforms to BS 6798:2009 and Building Regulations Approved Document H