8 inch to 4 inch airway reducers and splitters for PVC and Wire-HVAC Vent Hose Dust or Fume Collectors

Reducers and reducer-splitters for PVC/vent-hose, originally designed to attach to an AC Infinity butterfly backdraft gate for attaching to multiple 3D printer enclosures.

R4:

Only 4 way splitter.  Experimental.  Supportless attempt.  All overhangs are no less than 45 degrees.

R2:

Only 2 and 4 way splitters.  Conical model. 

Outflow 8inch: Slightly smaller at 198.5 OD, wall size 5mm.

R1:

• Print in PETG, ABS, PCTG, CF etc at 100% infill

• For dust and fume extraction

• Outflow 8inch OD 200.5mm ID 194mm,

• Uptake 4inch OD 99.5mm ID 93mm

Wall thicknesses: approximately 3-3.25mm