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The MUELLER STREAMLINE 6003 is a 3-inch PVC DWV end cleanout fitting designed for drain, waste, and vent piping systems where access for rodding and inspection is required. The fitting features a spigot inlet with a female threaded outlet that accepts a standard cleanout plug. Smooth interior walls reduce buildup and support full-flow drainage. PVC construction provides resistance to common drain chemicals and corrosion, making this fitting well-suited for both standard DWV installations and light chemical-exposure environments. Licensed plumbers and pipefitters install this fitting as part of new construction or retrofit drain systems.
This cleanout is sized at 3 inches on both the inlet and outlet and is intended for residential and commercial DWV piping assemblies. The straight, in-line cleanout configuration makes it easy to position at accessible points in a horizontal drain run. The female threaded outlet receives a matching cleanout plug, giving service technicians clear access to the line without cutting into the pipe. Its dimensional consistency meets industry standards for drop-in replacement in compliant PVC drain systems.
Designed as an OEM-style replacement or new-installation fitting for 3-inch PVC DWV drain, waste, and vent piping systems meeting NSF 14 and UPC requirements.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and ensure the line is depressurized and empty before cutting into an existing drain assembly. Solvent-weld the spigot end into the hub of the adjacent fitting using PVC primer and cement rated for DWV applications. Thread the cleanout plug into the female outlet by hand first, then tighten with a wrench to achieve a leak-free seal without over-torquing the plastic threads.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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