Waterway Plastics 672-4490 Barb Manifold - 1 inch Slip Inlet with Barb Outlets

What This Part Is Used For
The Waterway Plastics 672-4490 Barb Manifold is a plumbing distribution component used in pool and spa circulation systems. It allows water or air supplied through a 1 inch slip line to be divided into multiple smaller flexible tubing lines. This type of manifold is commonly found in spa jet plumbing where flow must be distributed evenly to multiple jets. It is typically installed inside the spa cabinet or within accessible plumbing runs.

Why This Part Matters
Manifolds play a direct role in how evenly water or air is delivered throughout a system. A cracked, undersized, or poorly fitted manifold can cause weak jet pressure or inconsistent performance. Using the correct OEM manifold ensures proper flow balance and reduces stress on downstream components. Improper substitutions can lead to leaks, tubing failures, or long-term circulation issues.

Key Features and Specifications

• Manufacturer SKU 672-4490
• Barb-style plumbing manifold
• 1 inch slip inlet connection
• Multiple barb outlet ports
• Designed for flexible tubing connections
• Used in spa jet and air distribution systems
• OEM Waterway Plastics component

Installation and Fitment Guidance
The slip inlet is solvent-welded into rigid plumbing using PVC cement. Barb outlets connect to flexible tubing and should be secured with clamps. Installers typically route tubing evenly to maintain balanced flow. Confirm by manufacturer part number before ordering.

About the Waterway Plastics Brand
Waterway Plastics is a leading manufacturer of pool and spa circulation components. Their plumbing fittings are used by builders and service professionals across the industry. OEM Waterway parts are designed for consistent sizing and long-term durability. The brand is trusted for reliable system integration and serviceability.

Common Service Context
This manifold is often encountered during jet pressure troubleshooting. Technicians inspect it when multiple jets show reduced output. It is commonly replaced due to age-related cracking or brittle plastic.