Sea Tech 81903052 35 Series Single Union Body Manifold 1-Inch CTS x 1/2-Inch CTS

The Sea Tech 81903052 is a 35 Series Single Union Body Manifold featuring a 1-inch CTS inlet with 1/2-inch CTS push-to-connect outlet ports. Part of the Sea Tech (now Watts AquaLock) 35 Series lineup, this manifold body serves as the core building block of a modular water distribution system, routing supply water from a main 1-inch line to individual 1/2-inch distribution outlets — each with its own integral shutoff valve.

The manifold operates like a water breaker box: the main supply enters through the 1-inch CTS inlet and water is distributed to individual fixtures through the 1/2-inch CTS outlets. Each outlet includes a built-in quarter-turn valve that allows water flow to any single fixture to be shut off without interrupting the rest of the system.

Key Features:

• 35 Series Construction: Manufactured in high-performance polysulfone for superior strength and durability
• 1" CTS Inlet x 1/2" CTS Outlets: Quick-connect push-to-connect design — no tools, clamps, or adhesives required
• Modular Manifold System: Single union body sections snap together to build a custom manifold configuration
• Integral Quarter-Turn Shutoff Valves: Allows individual zone control without shutting down the entire water system
• Rated Performance: 180°F at 100 psi / 75°F at 250 psi
• Multi-Certified: Certified to NSF-61, NSF-14, CSA B137.5, ASTM F877, and IGC 188-04c; recognized by the Uniform Plumbing Code (UPC)
• Lead Free compliant construction
• Compatible with plastic, CPVC, and copper tubing

Ideal for marine, RV, and residential potable water distribution systems, the Sea Tech 81903052 manifold body pairs with additional Sea Tech 35 Series manifold sections, label plates, and accessories. Also sold as model number 3589-1810.