Image M-Series ARO Pneumatic Standard Hose Barb Plug Markets Chemical Processing, Construction, Maintenance Repair Operations (MRO), Mining, Steel Processing Jump to Section Product Options Related Products Product Options Part Number Length Maximum OD Body Size Hose ID Material M2S2 2.00" 0.56" 1/4" 1/4" Steel M2S3 2.00" 0.56" 1/4" 3/8" Steel M3S3 2.25" 0.88" 3/8" 3/8" Steel Related Products Image Brass Ferrules for Air & Fluid Image Coil-Chief Self-Storing Hose with Fittings Image M-Series ARO Pneumatic Automatic Standard Hose Barb Coupler Image M-Series ARO Pneumatic Manual Standard Hose Barb Coupler Image Pinch-On Double Ear Clamp