The NOR-CAL PRODUCTS NW-40-CP-R1 CLAMPS are high-quality industrial clamps designed for use with vacuum pumps. Made by NOR-CAL, a trusted brand in the industry, these clamps are durable and reliable for various hydraulic, pneumatic, and plumbing applications. With the NOR-CAL NW-40-CD-R1 clamps, users can securely attach and position vacuum pumps for efficient and effective operation in a range of commercial and industrial settings.