ROK 60048 4" - 2-1/2" Reducer Fitting by Samona $5.99 SKU ROK 60048 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 4" to 2-1/2" Reducer Dust Extraction Fitting Join 4" Dust Collector Hose to 2 1/2" Dust Collection Hose Rugged ABS Plastic Abrasion Resistant