Pentair Letro L79BL Cleaner Float Arm Connector (LF21) suctions A freeze switch helps protect

A freeze switch helps protect compatible equipment by responding to low-temperature conditions

An LC cord helps connect compatible low-current single-speed outputs inside a spa control system

or no longer providing a secure hold

or when a compatible drill-powered cleaning setup needs broader coverage for different applications

For compatible plumbing layouts requiring high branch capacity

Pentair Letro L79BL Cleaner Float Arm Connector (LF21) suctions A freeze switch helps protectThis component is a practical choice for keeping an older Letro cleaner in service when one worn part is holding back performance. Because pressure cleaners rely on small mechanical and flow parts working together, this piece helps address issues tied to feed hose connection, water delivery, and cleaner mobility. Part LF21 is intended for the L79BL cleaner family and should be selected by model, diagram reference, and the component description shown