The Composite PTC Manifold Union is a standard, compact fitting designed for composite (PBT) bodies. It's available in two tube OD sizes: 3/8" and 1/4", with a standard connection at 3/8" and a union at 1/4" OD. This manifold, made of composite (PBT) material, features an O-Ring & Packing Material of NBR (Acrylonitrile Butadiene Rubber). It includes a back ring made of POM (Polyoxymethylene Plastic), lock claws made of Stainless Steel, and a collar and sleeve made of Nickel-Plated Zinc Alloy. Compatible with polyurethane and nylon tubing, it offers quick connections, reusable design, and durable construction for long-term use.