Pentair Lock Ring for Rainbow RDC/RTL/Leaf Traps – Dynamic Series Compatibility

Overview

The Pentair Lock Ring is a durable, purpose-built component designed to secure a variety of Pentair inline pool and spa filtration options. Built to pair with multiple Dynamic series filters, Rainbow RDC/RTL/Leaf Traps, and related accessories, this lock ring helps maintain alignment and a clean seal during regular filtration cycles. Its robust construction and precise fit are meant to support smooth maintenance workflows and reliable operation across compatible systems.

Fits and compatibility

This lock ring is engineered for use with a broad range of Pentair equipment, making it a versatile choice for replacements or upgrades. Key compatible models include:

• Dynamic series inline pool/spa cartridge filters (I, II RTL/RCF, III RTL/RCF, V)
• RDC-25, RDC-25S, RDC-50, RDC-50S, DSC 75, DSC 100
• Leaf traps (179, 179-HDB, 179-C, 179C HDB)
• Rainbow high-capacity automatic chlorine/bromine feeders (HC-3315, HC-3330, HC-3340)
• Predator II mini-cellular media cartridge filters

Physical dimensions are 7 19/50-inch in length, 1 21/50-inch in height, and 7-3/20-inch in width, ensuring a consistent fit across these systems.

Key benefits and real-life uses

• Secure fit: helps maintain a tight seal between housing components, potentially reducing leaks during operation.
• Cross-system compatibility: designed to work with a wide range of Pentair equipment for easier replacements or upgrades.
• Durable construction: characterized by a robust metal profile built to withstand regular pool and spa use.
• Maintenance-friendly: facilitates straightforward disassembly and reassembly for cleaning or part replacement.
• Reliable alignment: helps keep components properly seated for consistent filtration cycles.

Materials, finish, and installation thoughts

Crafted for longevity, the lock ring emphasizes a smooth, corrosion-resistant profile that resists typical pool chemistry exposure. When installing, verify alignment with the corresponding filter head and ensure the ring sits flush before securing the housing. Regular checks can help you spot wear and plan replacements in advance.

Why choose Pentair

Pentair is a trusted name in pool and spa equipment, offering components designed for broad compatibility and dependable performance across multiple models and feeders. This lock ring supports flexible maintenance strategies and helps you keep your filtration system operating as intended.