3-Way Gas Manifold - 3/8 Inch Inlet with 3 Shutoffs for CO2 and Mixed Gas

The 1743 is a 3-way gas manifold with a 3/8 inch inlet and three independent outlet shutoffs, the workhorse distribution fitting in any draft system that runs more than one regulated gas line. Connect to your CO2 or nitrogen regulator outlet, then split off to three independent keg or BIB lines, each with its own shutoff for service and isolation.

No Safety Check Valves

This manifold ships with shutoffs only - no check valves on the outlets. Check-valve manifolds add backflow prevention (beer can't push backwards into the gas line if a shutoff fails open), which is important for any draft system. The trade-off is cost: check-valve manifolds run 2-3x the price. The 1743 is the budget option for installs where you accept manual line management or where check valves live elsewhere in the system. For most commercial bars, the check-valve variant is the safer call.

Sizing

3/8 inch inlet matches standard CO2 regulator outlet fittings. 3 outlets gives you headroom for two active lines plus a spare for future expansion. For larger systems (4, 5, or 6 lines), see the matching 1744 (4-way), 1745 (5-way), and 1746 (6-way) variants.

Application

Mounts to a wall or directly to the regulator with standard brackets. Pairs with standard 5/16 inch ID gas line and worm-gear clamps or barb-style push-on connectors. Each shutoff includes a clear-handle lever for at-a-glance status check (open vs. closed).