High-Flow Pool Check Valve
1.5-inch / 2-inch
Illuminex•LU-CV15
1.5" / 2" Compatibility
Fits common residential pool plumbing sizes
Prevents Backflow
Maintains one-way water movement through the system
Female Socket Connection
Designed for permanent solvent-weld installation
Compact Straight-Body Design
Easy to integrate into pool and spa equipment plumbing
Price
$54 USD
Builder/Installer? to see your trade pricing.
BACKFLOW PROTECTION
Keep Water Moving in the Right Direction
The LU-CV15 check valve helps prevent water from reversing through pool equipment plumbing when circulation stops.
The arrow on the valve points in the intended direction of flow. The check valve does not replace proper plumbing design or system valves.
Made for 1.5-Inch and 2-Inch Plumbing
The female socket design supports common residential pool plumbing sizes, helping installers integrate the valve into new or existing PVC equipment lines.
1.5-inch pipe connection
2-inch pipe connection
Female socket
Solvent-weld installation
Connection is solvent-weld only — not threaded, unionized, or quick-connect.
Simple, Straight-Body Installation
The compact inline design fits neatly into pool and spa plumbing while providing dependable one-way flow protection.
Valve placement depends on the pool-system design. Follow the flow-direction marking and have the valve installed by a qualified pool professional.
LU-CV15 · 1.5-inch / 2-inch
Technical Specifications
| Model | LU-CV15 |
| Size Compatibility | 1.5-inch / 2-inch |
| Connection Type | Female Socket |
| Installation Method | PVC Primer and Solvent Cement |
| Product Dimensions | 6.7 × 4.75 × 4.33 inches |
| Product Weight | 1.2 lb |
| Application | Pool and spa plumbing |
| Function | One-way water flow and backflow prevention |
Installation Overview
- Turn off the circulation system and relieve system pressure.
- Confirm the intended direction of water flow.
- Position the valve so its flow arrow matches the plumbing flow direction.
- Prepare the PVC pipe and female socket connections.
- Apply approved PVC primer and solvent cement.
- Insert and align the pipe without allowing excess cement to enter the valve.
- Allow the connection to cure according to the cement manufacturer’s instructions.
- Restart the system and inspect for leaks and proper operation.
Installation must follow applicable plumbing, pool-safety and local code requirements.
Choose the Right Check Valve Size
Compare the two straight-body Illuminex check-valve sizes.
| Specification | LU-CV15 — This Model | LU-CV2 |
|---|---|---|
| Size | 1.5-inch / 2-inch | 2-inch / 2.5-inch |
| Connection | Female Socket | Female Socket |
| Dimensions | 6.7 × 4.75 × 4.33 inches | 6.7 × 4.75 × 4.33 inches |
| Weight | 1.2 lb | 1.3 lb |
LU-CV15 — This Model
- Size
- 1.5-inch / 2-inch
- Connection
- Female Socket
- Dimensions
- 6.7 × 4.75 × 4.33 inches
- Weight
- 1.2 lb
LU-CV2
- Size
- 2-inch / 2.5-inch
- Connection
- Female Socket
- Dimensions
- 6.7 × 4.75 × 4.33 inches
- Weight
- 1.3 lb
Product Resources
Explore More Pool Valves
Find the right Illuminex valve for backflow protection, water routing, and pool-equipment plumbing.



