Pentair TR100/TR140 Tee Diffuser Assembly (156355) watercousa A model-specific square cover helps

A model-specific square cover helps keep the repair closer to the original layout and can make service more straightforward in supported applications

Useful when the original panel body is failing

because the trap lid once again seats and secures the way it should

Manufacturer part number 12-0100-K should be matched carefully against the label

give this product practical value because installation hardware works best when it matches the intended equipment families closely

Pentair TR100/TR140 Tee Diffuser Assembly (156355) watercousa A model-specific square cover helpsThis genuine Pentair Pool Products tee diffuser assembly, part 156355, helps distribute incoming water inside compatible TR100 and TR140 sand filters. Proper diffusion reduces concentrated flow patterns and supports more even movement across the sand bed for dependable filtration. Use this replacement when the original diffuser is cracked, missing, or damaged during internal service. It is especially useful during a full filter rebuild, sand