Hayward Perflex EC65 Flex Tube Nest (ECX1251) nutsboltsscrews and this Balboa TP260W 4-Button

and this Balboa TP260W 4-Button Topside is designed for compatible applications where the original interface has become unreliable

That makes the repair feel much cleaner and more dependable once it is complete

A relief valve is useful because it helps protect the heater and connected system by responding when pressure exceeds the intended range

This replacement is especially helpful when the original button has aged poorly

This type of part is especially useful when the system needs a close-match replacement for a specific DTEC-1 pressure-switch profile

Hayward Perflex EC65 Flex Tube Nest (ECX1251) nutsboltsscrews and this Balboa TP260W 4-ButtonThe Hayward Perflex flex tube nest is designed for compatible EC65 DE filter applications where the internal filtration assembly needs replacement. A flex tube nest is useful because it forms the core filtration surface for DE media, supporting fine particle removal and helping maintain cleaner water. This replacement is especially useful when the original tube nest is torn, damaged, worn, or clogged beyond cleaning. Replacing the internal assembly