70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings

70136 4" to 2-1/2" Cone Reducer, Dust Collection Fittings for Dust Collection...

4"Magnetic Dust Collection Fittings,8 high-strength magnets,One-to-Many Magne...

Saillong 2 Pack Magnetic Dust Collection Fittings 4" Magnetic Connector

70108-P2 4-Inch Blast Gate for Dust Collector, Dust Collection Fittings, 2 PK

4" to 2-1/2" Cone Reducer, Dust Collection Fittings for Dust Collection Hose ...

70136 4" to 2-1/2" Cone Reducer, Dust Collection Fittings for Dust Collection...

4" Magnetic Dust Collection Fittings for Dust Collectors