Discover the Proline BK Products No Hub Coupling, engineered to join 2 in. to 1-1/2 in. hubbed pipes with a reliable, watertight seal. Built from a tough neoprene sleeve paired with robust stainless steel clamps, this coupling stands up to the demands of drain-waste-vent (DWV) installations in both residential and light commercial applications.
What sets this No Hub Coupling apart
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Dual hub sizes: End 1 is 2 in., End 2 is 1-1/2 in. hub, enabling quick transitions between common pipe sizes without extra adapters.
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Neoprene gasket + stainless steel: A flexible, chemical-resistant seal backed by corrosion-resistant bands for long-term reliability.
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Lead-free construction: Safe for environments where lead exposure is a concern.
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Temperature tolerance: Rated up to 220°F, suitable for drainage systems that see occasional heat from hot fluids.
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No hub design: A reliable alternative to cemented joints, relying on clamps to secure the sleeve around pipe ends.
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Packaging: Sold as a single unit in bulk packaging for quick restocking in maintenance or professional shops.
Applications and use cases
Use this coupling to repair or connect hubbed pipes in DWV runs where a quick, durable seal is required. Ideal when replacing damaged no-hub sections or joining a 2" line to a 1-1/2" branch without tearing out existing piping. The neoprene/stainless steel combination tolerates minor misalignment and compresses to form a tight seal around the pipe circumference.
Installation tips
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Prepare: Clean and deburr pipe ends so the neoprene sleeve seats evenly.
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Align: Position the hub ends so they sit squarely and avoid future stress on the joint.
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Tighten: Secure clamps progressively and evenly to ensure uniform compression along the gasket.
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Inspect: Check for any gaps after installation and run a small test with water to verify seal integrity.
Note: This No Hub Coupling is not IAPMO certified and not NSF listed, with an average lead content listed as lead-free. It is designed for general DWV connections where a flexible, easy-to-install hub-to-hub transition is needed, backed by a 2 in. to 1-1/2 in. size range and a 220°F maximum temperature rating.
