Super-Pro 2" Clear PVC Swing Check Valve with Unions | SP0823-20C

Prevent unwanted reverse water flow with the Super-Pro SP0823-20C 2-Inch Clear PVC Swing Check Valve. Designed for swimming pool and spa plumbing systems, this spring-assisted check valve features a clear PVC body, convenient union connections, and a 0.5 lb spring mechanism.

The valve allows water to flow in one direction while helping prevent backflow when circulation stops or plumbing pressure changes.

Its transparent construction provides convenient visual inspection of internal operation, while the union fittings allow the valve body to be removed for maintenance without cutting the permanently installed plumbing.

Product Features

• 2-Inch PVC Connections: Designed for compatible 2-inch socket-style swimming pool plumbing.
• Clear Valve Body: Allows visual inspection of the internal swing mechanism and potential debris buildup.
• 0.5 lb Spring: Spring-assisted mechanism helps the valve close when forward flow stops.
• Union Connections: Allow convenient removal for inspection, cleaning, or replacement.
• One-Way Flow Control: Helps prevent water from flowing backward through the plumbing system.
• Durable PVC Construction: Designed for compatible pool and spa circulation applications.
• 150 PSI Pressure Rating: Manufacturer-listed pressure rating at 73°F.

Product Specifications

• Brand: Super-Pro
• Manufacturer Part Number: SP0823-20C
• Distributor Part Number: SPG-56-1812
• Product Type: Swing Check Valve
• Nominal Size: 2 Inches
• Connection: 2" Slip x Slip with Unions
• Valve Body: Clear PVC
• Spring Rating: 0.5 lb
• Pressure Rating: 150 PSI at 73°F
• Application: Pool and Spa Plumbing
• OEM Cross-Reference: 1700C20
• UPC: 637509123864
• Package Quantity: 1 Complete Check Valve

Prevents Reverse Water Flow

Swimming pool and spa plumbing systems sometimes experience reverse water flow when pumps shut off or the pressure between connected plumbing lines changes.

The Super-Pro SP0823-20C uses a spring-assisted swing mechanism to permit water flow in the intended direction while helping block reverse flow.

Common applications include:

• Swimming Pool Return Plumbing
• Pool and Spa Combination Systems
• Raised Spa Plumbing
• Pool Equipment Bypass Lines
• Water Feature Plumbing
• Compatible Equipment Pad Installations

Clear PVC Body for Easy Inspection

The clear valve housing makes it easier to inspect the internal swing mechanism without immediately disassembling the valve.

This can help pool service technicians identify debris buildup, restricted movement, or a valve that is not closing as expected.

Convenient Union Connections

Unlike permanently installed one-piece check valves, the SP0823-20C includes union connections at both ends.

These unions allow the valve body to be removed from the plumbing for inspection or service without cutting the pipe.

This design is especially useful on equipment pads where future maintenance access is important.

When Should You Replace a Check Valve?

A damaged or malfunctioning check valve may no longer prevent reverse water flow.

Common symptoms include:

• Raised spa water draining into the pool after pump shutdown.
• Water flowing backward through plumbing lines.
• Internal valve components sticking or failing to close.
• Visible cracks or damage to the valve body.
• Debris preventing the swing mechanism from seating.
• Leaks around the valve body or union connections.

Check the plumbing configuration and inspect the entire system before determining whether replacement is necessary.

Related Pool Check Valves at Aqua Pool Supply

• Flo Control 1700C-20 – 2" Clear PVC True Union Spring Check Valve – Another serviceable 2-inch clear check valve. Confirm dimensions and installation requirements.
• Jandy 7511 – 1.5" to 2" 90-Degree Check Valve – Alternative serviceable check valve for compatible pool and spa plumbing.
• CMP 25830-200-000 – HydroSeal Serviceable Spring Check Valve – Alternative valve with 2-inch socket and 2.5-inch spigot connections.

Browse additional Pool and Spa Check Valves at Aqua Pool Supply.

Installation and Maintenance

• Turn off the pool pump and relieve system pressure before servicing.
• Confirm that the plumbing uses compatible 2-inch PVC connections.
• Follow the directional flow marking on the valve body.
• Use approved PVC primer and solvent cement as required for the pipe connections.
• Allow all solvent-welded connections to cure before pressurizing.
• Inspect union seals and ensure the valve body is properly secured.
• Check for leaks and proper one-way operation after installation.

Installation Notice: Verify the valve's approved mounting orientation, plumbing conditions, and required clearance before installation. This product is not intended to replace a certified backflow-prevention device where one is required by code.

Package Contents

Includes: One (1) Super-Pro SP0823-20C 2-Inch Clear PVC Swing Check Valve with 0.5 lb Spring and Union Connections.

Not Included: PVC pipe, primer, cement, or additional plumbing fittings.

Selling Quantity: One complete check valve.