Pack of 12 gray rods designed for use where a flowthru geometry and consistent sizing are required. Key benefits Precise dimensions for predictable fit: each rod is 3 1/8 inch long with a 3/8 inch diameter, sold as one pack containing one dozen rods. Flowthru design: internal flow path helps improve conversion rates in compatible systems by promoting consistent throughput. Simple compatibility: sized to fit fixtures, holders, or assemblies that accept 3 1/8 inch by 3/8 inch rods, making replacement and integration straightforward. Clear, consistent performance: uniform diameter and length ensure repeatable installation and operation across multiple units. Important attributes Size: 3 1/8 inch length, 3/8 inch diameter. Quantity: one pack with 12 rods. Color: gray. Function: flowthru design to support improved conversion rates in applicable setups. Compatibility: intended for systems and components that accept rods of these exact dimensions. Practical use scenarios Replacement parts: swap in a rod from this pack when servicing fixtures or assemblies that require a 3 1/8 inch by 3/8 inch component with a flowthrough profile. Fluid or material channels: use in smallscale dispensing or transfer assemblies where an internal flow path is needed to guide material consistently. Prototyping and test rigs: install these rods in prototype connectors, adapters, or test fixtures to evaluate flow behavior and mechanical fit. What you get One pack containing twelve gray rods, each 3 1/8 inch long and 3/8 inch in diameter, with a flowthru design intended to help improve conversion rates in compatible applications.