Secure your electrical connections with the NESCO 1-1/2 Conduit Nipple NP15000. This durable nipple is designed for use with rigid conduit, providing a reliable raceway for your wiring needs. Sold in a convenient box of 25, it's ideal for both professional installations and DIY projects.The NESCO NP15000 is a 1-1/2 inch close rigid conduit nipple. It is new and designed for use as a nipple/raceway.