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The MUELLER STREAMLINE K271000 is a 4-inch nominal DWV straight double sanitary tee designed for drain, waste, and vent piping systems. Manufactured from Schedule 40 PVC, this fitting accepts hub-style pipe connections and provides two branch inlets on a straight run, allowing multiple drain lines to tie into a single vertical or horizontal stack. Plumbers and pipefitters install this tee in new construction and retrofit DWV assemblies where two separate waste lines must connect at the same elevation. The PVC construction resists corrosion, chemical attack, and the typical wastewater conditions encountered in residential and light commercial drain systems.
This fitting is suited for residential and light commercial DWV installations including bathroom groups, kitchen drain stacks, and utility drain manifolds. The double sanitary tee configuration allows two horizontal branch lines to enter a common vertical stack while maintaining proper flow direction for waste drainage. Hub end connections accept standard Schedule 40 PVC pipe and solvent-weld fittings in the 4-inch nominal size class. It is domestically produced and conforms to standard Schedule 40 dimensional requirements for PVC DWV fittings.
Designed as an OEM-style replacement and new-installation fitting for 4-inch nominal Schedule 40 PVC DWV drain, waste, and vent piping systems using hub-end solvent-weld connections.
Installation is performed by licensed plumbers in accordance with the International Plumbing Code and applicable local codes. Shut off water supply and ensure the drain system is empty before cutting into an existing stack. Use PVC primer and solvent cement rated for DWV applications; follow the cement manufacturer's cure time before restoring flow. Do not apply mechanical force to freshly cemented joints.
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