Welcome to DustDog.Org – Simple, Affordable Dust Collection. Our flange and quick clamp system facilitates simple reconfiguration and our fittings outperform standard PVC fittings. Advantages Over Plumbing Fittings * Improved air flow * Lower Cost * No adaptors needed * Easy to install & reconfigure * Huge selection of fittings * Pipe Types - PVC - Sewer & Drain - Snap Lock - Spiral HVAC * Sizes : - 2in, 2.5in, 3in, 4in, 5in, 6in, 7in & 8in Mix between SCH40, DWV, SDR35 and Snap Lock and Spiral. Want to buy instead of print? Visit DustDog.Org. Brian Killen