The Relia-Bill™ coarse bubble jet diffuser is a non-clog type that automatically closes and seals completely when air is turned off. Unlike stainless steel wideban-type diffusers, this model will not be clogged by rags in the tank.
SSI Relia-bill diffuser unit has an operating headloss of approximately 5-10 inches of water when operated in normal airflow ranges (0 to 10 scfm normal).