70297 Modular Step 4 in 1 Adapter


Product Overview


This handy accessory provides you with a detachable assortment of hose fittings to accommodate your power tool and dust collection systems. This modular step fitting gives you 4 distinctive fittings for a variety of hose sizes – ALL-in-one unit. When pulled apart, it reveals 4 separate fittings for 4” to 1-1/2 inch hoses. These adapters provide flexibility by allowing users to continue to use the different diameter hoses for larger debris collection and maximum airflow, and smaller – more precise diameters for wet dry shop vacuum attachments and dust collector accessories.

  • INCLUDES: 4 detachable dust collector hose adapter fittings in 1
  • FUNCTION: Provides you with a versatile assortment of 4 dust collection fittings designed to connect different sized hoses to acquire additional length
  • VERSATILE: Each unit has different outside diameters and different inside diameters for project versatility – Perfect for 4” to 1-1/2” hoses
  • FEATURES: An efficient, space saving design that allows you to conveniently stack all four fittings together in one, or pull them apart to reveal individual adapter units
  • PREMIUM QUALITY: Possesses a rigid construction made out of ABS plastic for long term durability – able to withstand the abrasive nature of workshop dust collection

A High Quality Build with the Professional in Mind

Each fitting is made out of black, ABS plastic – a material known for it’s long-term durability. It possesses both, the impact and abrasive resistance needed to withstand the wear and tear commonly associated with woodworking workshops and professional environments. All four sections can be easily attached to your hose. The four sections are slightly tapered on each end.


  • Tapered Fitting 1: Top Outer Dia 1-21/64” to 1-23/64” | Inner Dia 1-1/8” top & bottom | Bottom Outer Dia 1-23/64” to 1-25/64”
  • Tapered Fitting 2: Top Outer Dia 1-17/32” to 1-19/32” | Inner Dia 1-25/64” top & bottom | Bottom Outer Dia 1-17/32” to 1-19/32”
  • Tapered Fitting 3: Top Outer Dia 1-49/64” to 1-13/16” | Top Inner Dia 1-19/32” | Bottom Outer Dia 2-27/64” to 2-15/32” | Bottom Inner Dia 2-19/64”
  • Tapered Fitting 4: Top Outer Dia 2-21/32” to 2-23/32” | Top Inner Dia 2-31/64” | Bottom Outer Dia 3-13/16” to 3-57/64” | Bottom Inner Dia 3-43/64”


WARNING: This product can expose you to chemicals including Acrylonitrile, Styrene which are known to the State of California to cause cancer and Butadiene which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to