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This universal-fit vacuum hose adapter connects hoses that have 4-inch inner diameters (ID) to hoses with 2 1/2-inch IDs.
The cone reducer’s actual dimensions are 2 7/16 inches OD and 2 17/64 inches ID with the other end having an OD 1 13/64 inches and an ID of 1 1/16 inches.
DUST COLLECTION FITTINGS MADE OF HEAVY-DUTY ABS PLASTIC - Dust collection fittings need to withstand not only tear and wear from regular use but also the abrasive nature of dust, dirt, and debris. Get years of use out of these simple fittings!