4 x 2 in. PVC Schedule-40 DWV Reducing Ring/Flush Bushing/Busher Reducer Pipe Fitting for Drain Waste Vent ASTM D2665 NSF 4" Spigot x 2" Hub

The 247Garden 4 x 2 in. PVC Schedule-40 DWV Reducing Ring, also known as a flush bushing reducer, is a professional-grade plumbing fitting designed to transition a 4-inch DWV (Drain, Waste, and Vent) pipe or fitting down to a 2-inch pipe size. Engineered to meet ASTM D2665 standards and certified by NSF, this reducer fitting offers a compact and efficient way to adapt different pipe sizes in your non-pressurized DWV system.

Featuring a 4-inch spigot end, this bushing fits snugly into a standard 4" SCH40 PVC hub fitting. The 2-inch hub (socket) accepts a 2" Schedule-40 DWV pipe, allowing a secure solvent-weld connection with PVC primer and cement. Its flush design means it installs neatly without taking up excess space, making it perfect for tight plumbing configurations, wall cavities, vertical stacks, or transition points between major and minor drainage lines.

Constructed from corrosion-resistant white PVC, this reducing ring is built to handle the rigors of both residential and commercial drainage systems, providing long-term durability and superior flow performance thanks to its smooth interior walls.

Key Features:

• Size: 4 in. Spigot x 2 in. Hub (Socket)

• Material: Durable white PVC (Polyvinyl Chloride)

• Standards: Complies with ASTM D2665 and NSF certified for DWV applications

• Connection Type:

  • 4" Spigot: Fits into 4-inch DWV hub or socket

  • 2" Hub (Slip): Accepts 2-inch Schedule-40 DWV pipe

• Design: Space-saving flush bushing with minimal projection

• Use: For non-pressurized drainage, waste, and vent systems only

• Corrosion and Chemical Resistant: Will not rust or degrade under typical DWV conditions

• Installation: Solvent-weld using PVC primer and cement

Common Applications:

• Reducing from 4-inch main drain lines to 2-inch branch pipes

• Shower or sink drain transitions in residential systems

• Vent pipe reductions in vertical stacks

• New construction and retrofit plumbing projects

• Compatible with most Schedule-40 DWV fittings and pipe

Why Choose 247Garden?

At 247Garden, we pride ourselves on delivering top-tier plumbing components that combine durability, performance, and code compliance. Our 4 x 2 in. Schedule-40 DWV Reducing Ring is a trusted choice among contractors, plumbers, and DIYers who demand reliability and accuracy in every fitting. With a wide range of sizes and configurations in stock, 247Garden has the right solution for your DWV needs.

Note:
This fitting is intended for use in non-pressurized DWV systems only. Not suitable for potable water or pressurized lines. Always verify code compliance and use appropriate PVC primer and solvent cement for installation.