Introducing the Fernco Schedule 40 3 in. Compression X 1-1/2 in. D Compression PVC Donut Fitting — a purpose-built connector that cleanly pairs a 3" pipe with a 1-1/2" pipe using dependable compression ends. Designed for direct connect installations, this PVC donut fitting delivers a compact, durable solution when adapting pipe sizes in PVC systems.
Key benefits that matter in real-world plumbing
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Two compression ends for a direct connect: 3" on one side and 1-1/2" on the other, eliminating the need for multiple adapters and reducing installation time.
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Schedule 40 PVC compatibility: Built to work with standard Schedule 40 PVC piping, providing a straightforward integration into common plumbing and drainage runs.
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Lead-free construction: Designed with safe, lead-free materials suitable for potable and general piping projects.
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Single-piece packaging: Ready-to-use in a single unit, simplifying ordering and on-site handling.
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Maximum pressure rating: Rated up to 4.3 (per product spec), giving you a clear performance expectation for typical piping scenarios.
Ideal for projects where a larger-diameter pipe must connect smoothly to a smaller-diameter line without resorting to lengthy assemblies or solvent welding. The direct connect design reduces potential leak points and speeds up repairs or new installations.
Who should consider this donut fitting
- Plumbers and DIY enthusiasts working with PVC drainage or distribution lines that require a 3" to 1-1/2" transition.
- Homeowners performing upgrades or repairs in existing PVC systems that use Schedule 40 pipes.
- Projects demanding a compact, compression-based transition rather than solvent-weld fittings.
Practical usage and tips
- Prepare pipe ends by ensuring clean, burr-free surfaces before installation for a reliable seal.
- Insert the 3" and 1-1/2" ends into their respective piping runs, then tighten compression components evenly to create a snug, leak-resistant connection.
- Inspect connections after initial pressure testing and periodically during use; replace if you notice cracks, deformation, or leaks.
Specifications at a glance
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Ends: Compression to 3" and compression to 1-1/2"
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End 1 diameter: 3 inches
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End 2 diameter: 1-1/2 inches
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Material: PVC
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Schedule: Schedule 40
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Product type: Donut Fitting
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Application: Direct Connect
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Lead content: Lead-Free
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IAPMO certified: No
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NSF listed: No
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Maximum pressure: 4.3
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Number in package: 1
With the Fernco Schedule 40 3 in. Compression X 1-1/2 in. D Compression PVC Donut Fitting, you gain a precise, reliable solution for connecting mismatched PVC pipes in a compact footprint — a practical choice for efficient, durable plumbing projects.
