Fitting standard

Snap-lock and crimped metal duct for dust collection

What our sources confirm about snap-lock and crimped metal duct: Oneida's 6 in cyclone ports are sized for crimped duct. Most details are not confirmed.

Also listed as snap-lock pipe, crimped duct, metal duct

Short answer

Our sources confirm little about snap-lock and crimped metal duct: Oneida says its 6 in Super Dust Deputy models have ports sized for crimped ductwork fittings, and Harbor Freight's 59726 manual says '4-inch vent pipe' without naming a standard. Oneida's snap-lock pipe page and instructions could not be read, so gauge, crimp and diameter details are not confirmed.

Key facts

What the standard or system covers
Not confirmedOneida's snap-lock pipe page and instructions could not be read.
Marking to look for
Not confirmed
Published dimensions
Not confirmed
Joins directly to
Oneida's 6 in Super Dust Deputy models: ports sized for crimped ductwork fittings[1]
Joins only through an adapter
Not confirmed
Transition parts with stated ends
Not confirmed
Gates and fittings made to it
Not confirmed
Application limits
Not confirmed
Not confirmed
Harbor Freight's 59726 manual says '4-inch vent pipe' without naming a pipe standard, and Oneida's snap-lock pipe page and instructions could not be read.[2]

Watch out for

  • Oneida's 6 in Super Dust Deputy ports are sized for crimped ductwork, while its 4/5 in models take friction-fit flex hose; check which one you have before buying duct.

Sources

  1. Super Dust Deputy 4/5 inch Dust Collection Cyclone Separator | Oneida Air Systems · Oneida Air Systems · Super Dust Deputy 4/5 product title, included adapters, application range and separation claim; Wayback capture of 2026-05-24 · checked 14 Oct 2026
  2. Central Machinery 2 HP Dust Collector 59726 Owner's Manual & Safety Instructions · Harbor Freight Tools · 59726 owner's manual (copyright 2025): specifications, inlet setup, parts list · checked 14 Oct 2026

Next review due 13 Jan 2027.