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Flexible PVC bushing trap QB-43, cylindrical form, smooth grey finish

Fernco Inc.

Fernco Inc. QB-43 Flexible Bushing Trap

SKU CH-ZT8K-PZ22V MPN QB-43

Flexible bushing connects 4-inch nominal PVC pipe with female ends

  • TypeDrain Components
  • MaterialHAWA
  • Flexible bushing fits 4-inch nominal pipe
  • HAWA material resists corrosion and chemicals
  • Female-to-female design connects two pipe ends
  • Model QB-43 ensures correct replacement fit

Flexible PVC Bushing for 4-Inch Pipe

This Fernco QB-43 flexible bushing connects 4-inch nominal PVC pipe in drainage systems. The HAWA material construction provides a secure, watertight seal between compatible fittings. It installs without special tools for quick repairs or new installations.

Plumbers handling standard 4-inch drainage

Suited for residential and commercial drain lines using 4-inch PVC pipe with female fittings. Not for buyers needing a different nominal pipe size or a rigid coupling instead of a flexible bushing. Those working with non-PVC materials should verify compatibility before purchasing.

Highlights

  • Flexible bushing fits 4-inch nominal pipe
  • HAWA material resists corrosion and chemicals
  • Female-to-female design connects two pipe ends
  • Model QB-43 ensures correct replacement fit

Specifications

TypeDrain Components
MaterialHAWA
BrandFernco
ModelQB-43

Questions about this item

How do I install the QB-43 flexible bushing on a 4-inch pipe?

Slide the bushing onto the pipe end, ensure the female socket fully seats, then tighten the clamps evenly to prevent leaks.

When should the QB-43 bushing be replaced?

Replace if the PVC shows cracking, deformation, or if joint leaks persist after re-tightening clamps.

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