Jandy Pro Series 7235 1 1/2"-2" 180 Degree Check Valve features a clear lid and red seal plate for easy inspection, as well as a unique swing/spring design. It's made of the toughest CPVC material and can easily be disassembled for clearing debris. It is available in straight-through or 90° models and 2" x 2.5" or 1.5" x 2" sizes. The large 2.5" x 3" dimension is designed to easily connect with the Jandy Pro 3HP Stealth Pump. It can handle flow rates up to 170 gallons per minute with minimal head loss, making it great for spas and water features that require high flow rates.