DJ545 SUMP CHECK VALVE

• Fits 1-1/4" or 1-1/2" black, galvanized and DWV (Sch. 40) pipe.
• Checks backflow of water and sewer gas.
• Made of strong durable ABS with corrosion-resistant, all stainless steel clamps and superior quality flappers that do not fail.
• Because they have a tight and a non-metallic body, they greatly reduce pump noise, motor hum and vibration.