Powertec 70366 4" Integrated Blast Gate (Patented) with 4" Flex Cuff and 4" Od to 2-1/2" Od Cone Reducer

INCLUDES: (1) Flexible Cuff Coupler with Steel Clamps (4-9/16" OD, 4" ID and 2-9/16" Length) (1) 4" Patented Blast Gate dust collector attachment (Tapered OD, from 3-7/8" to 4-1/8") (1) 4" to 2 1/2" Dust Collection Hose Reducer (4" nominal OD end measures 3-61/64" OD & 3-41/64" ID; 2-1/2" nominal OD end measures 2-15/32" OD and 2-9/32" ID), FUNCTION: A handy double sided adapter that allows you to step down from your larger (4) dust collection hose to a smaller (2-1/2") shop vacuum hose branch line. The 2-1/2 in. opening also allows you to fit Shop-Vac, Sears and a variety of other wet/dry vacuum cleaners, PLEASE NOTE: This cone reducer is specifically designed to work exclusively with 4 and 2-1/2 hoses It is NOT intended to fit or accommodate a 2-1/2 OD or 4 OD dust collection equipment port directly (which would require POWERTEC 70149 or 70148 Flex Cuffs), PREMIUM: Made with high quality ABS plastic for long-term durability and to withstand the abrasive nature of workshop dust collection, DIMENSIONS: 4 nominal OD end measures 3-61/64 OD and 3-41/64 ID; 2-1/2 nominal OD end measures 2-15/32 OD and 2-9/32 ID, SPECIFICATIONS: Tapered OD, from 3.82 to 4.125", DIMENSIONS: 4-9/16 OD, 4 ID and 2-9/16" Length Connects to 4 inch nominal outer diameter adapter or dust collection pipe, PLEASE NOTE: Embossed "OUT" mark should face toward the dust collector side to ensure proper hookup with the dust collection system, achieving clog-free performance.