Reducing 4-In. X 1-1/2-In. Flexible PVC Pipe Coupling For Cast Iron And Plastic Plumbing Connections, Leak-Proof And Chemical-Resistant Elastomeric PVC, DIY-Friendly Fit For Quick, No-Fuss Install, Seals Out Sewer Gases, 50-Year Service Life, Black

4 in x 1-1/2 in Flexible PVC Reducer Coupling (Single Pack)
✔️ ID 1.91 in and 4.40 in sizing; fits 1.75-1.95 in x 4.00-4.50 in OD

This flexible reducer coupling is a leak-proof elastomeric PVC fitting designed to connect plastic and metal pipes in drain, waste, and vent piping. It handles sewer gas exposure and chemical contact well, making quick, no-primer installations a reality.

✅ ODs cover 1.75-1.95 in and 4.00-4.50 in
✅ Internal diameters 1.91 in and 4.40 in
✅ Flexible elastomeric PVC construction resists chemicals and sewer gases
✅ Stainless steel clamps provide corrosion resistance and easy install

💡 What is a long-tail question about this reducer coupling and how is it used in plumbing?

A handy option for making clean transitions between pipe sizes and materials without primers or glues.

- Connects different pipe materials and sizes without primers or glue
- Seals out sewer gases with elastomeric PVC construction
- Works with PVC, CPVC, ABS, HDPE, cast iron, copper, steel, and lead
- UPC and ASTM D 5926 compliant with corrosion-resistant clamps
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