The Polypipe MU319
 is a 50mm screwed access plug for a solvent weld waste system. It is designed to provide an access point within the waste pipework for inspection, cleaning, or maintenance purposes. 
Key Features and Specifications
Product Type: Screwed access plug.
Function: Seals an access point in a 50mm solvent weld fitting (usually a bend or tee that has an access socket) and can be easily removed for maintenance or rodding of the pipes.
Size: 50mm diameter.
Material: Manufactured from MuPVC (Modified Unplasticised Polyvinyl Chloride), which offers enhanced impact resistance and a broad range of chemical resistance. It is also available in ABS plastic in some ranges.
Connection Type: The plug itself is threaded to screw into a compatible access socket fitting. The fitting it is used with requires solvent cement for a permanent connection to the rest of the pipe system. It is not compatible with push-fit systems.
Application: Suitable for use in domestic and commercial above-ground soil, waste, and vent systems.
Color Options: Available in White (MU319W), Black (MU319B), and Solvent Grey (MU319SG).
Standards: Manufactured to relevant British Standards, such as BS EN 1455-1. 
This fitting is part of Polypipe's System 2000 range of solvent weld waste products.