FHK & DS Series 1⁄8" 1⁄8" 1⁄4" 3⁄8" 1⁄2" ZSi-Foster Engineering Catalog – 385 – 1⁄4" 3⁄4" 3⁄8" 1⁄2" 3⁄4" Actual Size Layouts Indexes Technical Data Hoses & Fittings Fittings & Accessories Blow Guns & Accessories Hydraulic QD Pneumatic QD 1" 1"