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White Schedule 40 PVC reducing coupling, 6-inch to 4-inch slip x slip (socket) reducer shown on plain white background.

6" x 4" Schedule 40 PVC Reducing Coupling (Slip x Slip)

Brand: PVC
Save 25%
$38.39
$28.79
SKU 429532

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A durable Schedule 40 PVC reducing coupling that transitions from 6" to 4" nominal pipe using slip (socket) connections. Engineered for irrigation, landscaping, and potable water distribution, this fitting provides a secure solvent-weld joint and long service life when installed according to manufacturer instructions.

  • Size: 6" to 4" nominal - fits standard Schedule 40 PVC pipe (slip x slip/socket connections).
  • Material: Rigid white PVC for corrosion resistance and reliable performance in buried or aboveground systems.
  • Standards: Manufactured to meet ASTM D2466 and compatible with NSF-listed potable water applications where specified.
  • Application: Ideal for irrigation, landscape, municipal, and general pressure piping systems that require a reduction in diameter.
  • Installation: Slip/socket ends are joined with PVC primer and solvent cement; allow proper cure time before pressurizing the system.

Installers should confirm compatibility with system pressure and temperature requirements and follow local plumbing codes. Use appropriate primer and solvent cement for reliable solvent-weld connections; consult the fitting manufacturer's technical data for detailed specifications and warranty information.

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Frequently Asked Questions

What pipe sizes does this reducing coupling connect?
Connects nominal 6-inch to 4-inch Schedule 40 PVC pipe; fits standard slip/socket ends.
How do I install the slip (socket) connections correctly?
Clean with PVC primer, apply solvent cement to pipe and socket, assemble and allow proper cure before pressurizing.
Is this fitting suitable for potable water and irrigation systems?
Yes — manufactured to meet ASTM D2466 and compatible with NSF-listed potable water applications when installed per specs.
What temperature or pressure limits should I check before using it?
Check the manufacturer's technical data for pressure and temperature ratings; Schedule 40 PVC is typically rated up to about 140°F.