Draft Beer Trunk Line

Pre-Assembled & Cut-to-Length Trunk Line for Long Draw Systems

Trunk line — also called python — is the insulated bundle that carries beer from your walk-in cooler to your draft tower. Every long draw system needs it. Ours is built right: barrier beer lines, glycol supply and return, and a durable insulated jacket, all bundled and ready to pull.

What's Inside a Trunk Bundle

• Barrier beer lines — BA-approved Bev-Seal Ultra or equivalent; prevents CO2 loss and O2 pickup over long runs
• Glycol supply & return lines — keeps beer at serving temp from cooler to faucet
• Insulated jacket — foam-filled PVC outer sleeve minimizes temperature gain in warm spaces

Available Formats

• By the foot — cut to your exact run length, no waste
• Pre-assembled bundles — common lengths ready to ship, ideal for standard bar builds
• Custom configurations — need more beer lines or a larger glycol line? Contact us.

Sizing Guide

• Most commercial long draw systems use 3/16" barrier beer line inside the trunk
• Glycol line sizing depends on your power pack — match the OD spec from your chiller manufacturer
• Trunk diameter (number of beer lines) is determined by your tap count

Not sure what you need? Our team specs long draw systems daily — reach out before you order.