This spa plumbing manifold features 2" street x 2" slip connections with (4) 3/4" ribbed barb fittings, plus one barb plug for configurations requiring only three ports. The slip end accepts a 2" pipe measuring approximately 2 3/8" outside diameter, while the street end glues into a 2" fitting with roughly 2 3/8" inside diameter. All four barb ports utilize modern ribbed design for secure hose attachment. This component works perfectly for contemporary hot tub plumbing systems and can be combined with additional manifolds from SpaShopper to create custom configurations matching your specific spa requirements. Whether you're repairing existing plumbing or upgrading your water distribution system, this manifold provides reliable performance with professional-grade construction. The included plug allows flexibility to cap one port when running a three-line setup instead of four.