Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Hose Connections by Grobet Sale $8.60 | / SKU 14-199 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Hose Connections Used on regulators so that standard ID hose can be used. Size is 9/16" - 18 for 3/16" ID. Left hand thread for fuel gas.