Perfect Compatibility: Designed to seamlessly compatible with Pentair Triton II, Triton C, Triton C-3, TR100C, TR140C, and CLR Series pool and spa sand filters, a direct replacement for part number 273564Z Clear Body Design: Features a transparent housing that allows for easy visual inspection, helping you monitor air release and ensure optimal filter performance Durable & Corrosion Resistant: Built from high-quality, chemical-resistant materials for long-lasting performance in harsh pool environments Easy to Use: Manual operation makes it simple to release trapped air from your filtration system, improving efficiency and reducing system strain Cost-Effective Replacement: Restore your filter’s performance without the high cost of OEM parts, install in minutes with no special tools required a