429-168 1 1/4" x 1 Slip x Slip Reducer Coupling PVC SCH 40
$1.41
The 1-1/4" x 1" Schedule 40 PVC Reducer Coupling connects two PVC pipes of differing diameters while maintaining a secure, watertight seal. Featuring dual slip (socket) ends for solvent-welded joints, it provides a permanent, leak-free connection ideal for both pressure and non-pressure systems.
Made from rigid, corrosion-resistant PVC, this coupling can withstand chemicals, pressure, and environmental stress for long-term performance. Rated for 140 °F and 150 psi @ 73 °F, it meets ASTM D1784 and NSF standards for potable-water applications. Perfect for use in plumbing, irrigation, and water-distribution systems, the 1-1/4” to 1” PVC Reducer Coupling offers lightweight handling, simple installation, and long-lasting durability.
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429-168 1 1/4" x 1 Slip x Slip Reducer Coupling PVC SCH 40
Technical Specifications
The 1-1/4” to 1” PVC Reducer Coupling (Part #429-168) provides a durable, high-performance solution for joining PVC pipes of two different diameters. Crafted from rigid Schedule 40 PVC, this fitting delivers consistent strength across plumbing, irrigation, and drainage systems.
- Nominal Pipe Size: 1-1/4" x 1"
- End Type: Slip x Slip (Socket x Socket)
- Material: PVC (Polyvinyl Chloride)
- Schedule: 40
- Color: White
- Maximum Service Temperature: 140 °F (60 °C)
- Pressure Rating: 150 psi @ 73 °F (typical for Schedule 40 PVC)
- Listings: NSF Certified for potable water use
- Standards: ASTM D1784
- Part Number: 429-168
- Product Family: Schedule 40 PVC
For dependable performance in both residential and commercial systems, this coupling offers long-term resistance to corrosion, scaling, and chemical exposure.
Typical Applications
The 1-1/4” to 1” PVC Reducer Coupling is widely used wherever a smooth transition between two PVC pipe sizes is needed:
- Ideal for residential plumbing, garden irrigation, and drainage systems where efficient flow control is essential.
- Commonly seen in agricultural, pool and spa, and commercial water distribution networks.
- Provides a tight, leak-free fit that minimizes turbulence and pressure loss.
- Resistant to corrosion, scaling, and UV exposure—suitable for indoor, outdoor, and underground installations.
- Compatible with both manual and automated solvent-welding systems for fast, consistent connections.
Whether you’re upgrading a home water line or configuring an irrigation manifold, this reducer coupling brings the efficiency and system reliability you can trust.
Installation & Handling Tips
When you put time into proper installation, you’re able to maximize the life and performance of any PVC coupling. Follow the steps below for the best results:
- Cut the pipe ends squarely and remove burrs or rough edges.
- Clean pipe and socket surfaces thoroughly before bonding.
- Prime both pipe and fitting sockets using an NSF-approved PVC primer to soften and prepare the surfaces.
- Apply solvent cement meeting ASTM D2564 standards. Insert the pipe fully into the socket with a ¼-turn twist to spread cement evenly.
- Hold the joint together for several seconds, then wipe away excess cement.
- Cure for at least 15 minutes before handling and two hours before pressurizing the line.
- Store unused couplings in a cool, dry environment to preserve material integrity.
These simple steps help ensure a long-lasting, watertight seal that supports safe operation and minimal maintenance.
Why Choose Maxx Supply?
Maxx Supply delivers trusted quality and unbeatable value to both professionals and DIYers alike:
- Premium Schedule 40 PVC fittings manufactured to industry specifications for consistent fit and performance.
- NSF and ASTM-certified materials ensure compliance with plumbing and potable-water standards.
- Competitive pricing made possible by direct distribution and bulk purchasing.
- Fast, nationwide shipping with most items fulfilled within 24 hours.
- Knowledgeable support from experts ready to help select the right components for any project.
Contractors, plumbers, and irrigation specialists across the U.S. choose Maxx Supply for products and service they can count on — time and time again.
The 1-1/4" x 1" Schedule 40 PVC Reducer Coupling connects two PVC pipes of differing diameters while maintaining a secure, watertight seal. Featuring dual slip (socket) ends for solvent-welded joints, it provides a permanent, leak-free connection ideal for both pressure and non-pressure systems.
Made from rigid, corrosion-resistant PVC, this coupling can withstand chemicals, pressure, and environmental stress for long-term performance. Rated for 140 °F and 150 psi @ 73 °F, it meets ASTM D1784 and NSF standards for potable-water applications. Perfect for use in plumbing, irrigation, and water-distribution systems, the 1-1/4” to 1” PVC Reducer Coupling offers lightweight handling, simple installation, and long-lasting durability.
- Part #:
- 429-168
- Product Family:
- Sch 40 PVC
- Size:
- 1-1/4"
