Prevents damage to equipment, pumps and piping systems by blocking backflow. The flap is designed for a constant flow. Suitable for water and air/gas (also ozone!). Seal is made of Viton. Low resistance. opening pressure: > 1.0 KPA. Max. Pressure: >0.3 MPA.
PP threaded piece 12 x 3/4" IG
PP threaded piece 12 x 3/4" IG
PP threaded piece 12 x 3/4" IG
PP threaded piece 20 x 3/4" AG
PP threaded piece 20 x 3/4" AG