Waterway Plastics 672-7140 Spa Manifold - 2 inch Slip to 2 inch Spigot with Four Ports

What This Part Is Used For
The Waterway Plastics 672-7120 Spa Manifold is a flow distribution component used in spa plumbing systems to divide water from a main supply line into multiple smaller branch lines. It is commonly installed after a pump or valve where water needs to be evenly routed to several jets or zones. This manifold transitions from rigid PVC plumbing to flexible tubing runs. It is typically located inside the spa cabinet or beneath the shell where multiple lines converge.

Why This Part Matters
Balanced water distribution is critical to consistent jet performance and system efficiency. A cracked or improperly sized manifold can cause uneven pressure, weak jet output, or hidden leaks that are difficult to diagnose. Using the correct OEM manifold ensures each outlet receives predictable flow. Improvised fittings or mismatched manifolds often lead to long-term plumbing stress and premature failure.

Key Features and Specifications

• Manufacturer SKU 672-7120
• Spa plumbing distribution manifold
• 2 inch slip inlet connection
• Six 0.75 inch barbed outlet ports
• Designed for rigid-to-flex plumbing transitions
• Used in spa jet distribution systems
• OEM Waterway Plastics component

Installation and Fitment Guidance
The inlet is solvent-welded to rigid PVC pipe, while flexible tubing is secured to the barbed outlets with clamps. Installers typically dry-fit the manifold to verify routing and spacing before final bonding. Tubing runs should be evenly routed to maintain balanced flow. Confirm by manufacturer part number before ordering.

About the Waterway Plastics Brand
Waterway Plastics is a leading manufacturer of spa and pool plumbing components used by OEM builders worldwide. Their manifolds are engineered for consistent sizing and dependable system integration. Waterway parts are widely trusted for compatibility with factory plumbing layouts. The brand is known for long-term durability in demanding spa environments.

Common Service Context
This manifold is often encountered when multiple jets lose pressure simultaneously. Technicians identify it by tracing several flex lines back to a single supply point. Replacement is common when barbs crack or tubing connections loosen over time.