Campbell Hausfeld CV003403AV is an inline check valve with 3/4" FNPT on one end and 3/4" MNPT on the other, designed to prevent backflow in compressed-air lines. This compact, threaded valve sits between fittings or hoses in a pneumatic system to ensure one-way air flow. The 3/4" FNPT x 3/4" MNPT ports align with standard shop-air components, making it straightforward to install in Campbell Hausfeld compressors and tools. By restricting flow to a single direction, it helps maintain system pressure and protect downstream components in typical workshop setups.
