Pentair PacFab TR140 Lower Pipe Assembly (154489) switches The AP130 is a practical

The AP130 is a practical testing supply when a water-care setup needs dependable pH measurement support

A body like this is useful because it restores the hidden plumbing-side structure of the jet while maintaining matching barb-style connections for both air and water lines

A PCB mount relay helps switch compatible electrical circuits from a control board

combined with the without-overlay configuration

and PCAL100 references

Pentair PacFab TR140 Lower Pipe Assembly (154489) switches The AP130 is a practicalBuilt for focused service work, Pentair PacFab TR140 Lower Pipe Assembly is a direct replacement option for lower internal pipe assembly for TR140 sand filter water distribution and return flow. It supports sand filter service where internal routing, media containment, and correct reassembly are important. Match by model, part number, size, color, and production date notes before ordering or installation. Confirm internal orientation before adding