ROK 60105 4" - 2-1/2" Y Dust Extraction Fitting by Samona $12.99 SKU ROK 60105 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 4" - 2-1/2" Y Dust Extraction Fitting 4" x 4" x 2-1/2" Rugged ABS Plastic Abrasion Resistant