CMP 25506-331-000 Unblockable Ring Drain Complete, 20″, Gray


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  • UV-resistant gray finish for long-lasting appearance
  • Low-maintenance design for long-term reliability
  • Complete assembly for simplified installation
  • Designed to reduce suction entrapment risks
  • Durable, corrosion-resistant construction

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SKU: CMP25506331000 Category:

Description

CMP 25506-331-000 Unblockable Ring Drain Complete, 20″, Gray

The CMP 25506-331-000 Unblockable Ring Drain Complete, 20″ is a high-performance, professionally engineered pool drain system designed to deliver exceptional hydraulic efficiency, long-term durability, and enhanced safety for residential and commercial swimming pools. Manufactured with precision and built to meet modern aquatic standards, this 20-inch unblockable ring drain represents a reliable solution for maintaining optimal water circulation while reducing the risks traditionally associated with single-point suction outlets. Its thoughtfully designed structure, neutral gray finish, and complete assembly make it a dependable choice for new pool construction projects as well as renovation or retrofit applications.

At the core of the CMP 25506-331-000 drain is its unblockable ring configuration. Unlike conventional drain covers that rely on a single suction point, this innovative ring-style design distributes suction across a larger surface area. By expanding the hydraulic intake zone, the drain significantly minimizes suction concentration, thereby enhancing swimmer safety. This makes it an ideal option for pools that must comply with strict safety codes and entrapment prevention standards. The 20-inch diameter offers ample coverage, supporting high flow rates without compromising efficiency or performance. Whether installed in residential backyard pools or larger commercial aquatic facilities, this unblockable ring drain ensures smooth and balanced water movement throughout the system.

Durability is a defining characteristic of this drain assembly. Constructed from high-quality, corrosion-resistant materials, the CMP 25506-331-000 is built to withstand continuous exposure to chlorinated water, saltwater systems, UV rays, and fluctuating temperatures. The gray finish not only provides a clean, modern appearance that blends seamlessly with a variety of pool surfaces, but it also resists fading and discoloration over time. This ensures that the drain maintains its aesthetic integrity even after years of use. The robust construction reduces the likelihood of cracking, warping, or structural fatigue, providing peace of mind to pool owners and facility operators alike.

Hydraulic efficiency plays a critical role in overall pool performance, and the CMP 20-inch unblockable ring drain excels in this area. By facilitating even water distribution, it supports consistent skimming and filtration, helping to eliminate debris, contaminants, and stagnant zones within the pool. Improved circulation contributes directly to better water clarity, balanced chemical distribution, and reduced strain on pumps and filtration systems. As a result, pool equipment operates more efficiently, potentially extending the lifespan of pumps and lowering overall maintenance costs. The optimized design ensures that water flows smoothly through the drain without excessive turbulence or noise.

Installation is streamlined thanks to the complete assembly configuration. The CMP 25506-331-000 comes ready for integration into compatible pool systems, simplifying the installation process for contractors and pool professionals. Its 20-inch ring structure is engineered for secure placement and stable anchoring within the pool floor, ensuring long-term reliability. The precise molding and manufacturing tolerances allow for a snug fit that supports both structural integrity and watertight performance. Whether incorporated into concrete, gunite, or other pool finishes, the drain integrates cleanly and securely.

Safety remains one of the most important considerations in pool design, and the unblockable configuration of this drain addresses this concern directly. By dispersing suction forces across a broader area, it reduces the likelihood of body or hair entrapment incidents. This makes it especially valuable in family pools, community centers, hotels, and aquatic facilities where swimmer protection is paramount. The design supports compliance with recognized safety guidelines, making it easier for builders and operators to meet regulatory requirements while enhancing user confidence.

Beyond functionality, the subtle gray color offers versatile aesthetic compatibility. It complements a wide range of pool finishes, including plaster, pebble, tile, and aggregate surfaces. Rather than drawing attention away from the pool’s design, the drain blends naturally into the surrounding environment, maintaining a cohesive and professional look. The neutral tone helps conceal minor debris or natural wear, preserving a clean visual appearance between routine maintenance cycles.

CMP is a leader in products for the recreational pool and spa industry. Innovative products from CMP include sanitizer systems, white goods, LED lighting, water features and accessories.CMP is committed to creating solutions for pool and spa industry professionals. Spa designers, pool builders, bath manufacturers and retail store owners around the world depend on CMP products, service and support.

CMP 25506-331-000 Unblockable Ring Drain Complete, 20″, Gray Features:

  • 20-inch unblockable ring drain design for enhanced suction distribution
  • Engineered to support high flow rates and optimal hydraulic efficiency
  • Promotes improved water circulation and filtration performance
  • Compatible with various pool finishes and construction types
  • Built for residential and commercial pool applications
  • UV-resistant gray finish for long-lasting appearance
  • Low-maintenance design for long-term reliability
  • Complete assembly for simplified installation
  • Designed to reduce suction entrapment risks
  • Durable, corrosion-resistant construction

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Additional information

Brand

CMP

Plumbing Accessories

Pool Main Drains

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