550-0701 | Waterway Pro Clean Plus Lock Ring System Transformer For Pentair IntelliCenter this top housing helps protect

this top housing helps protect and support the internal filter elements for optimal system performance

Fewer harmful by-products

or premature wear

How does the E3T achieve 100% thermal efficiency for pools and spas

550-0701 | Waterway Pro Clean Plus Lock Ring System Transformer For Pentair IntelliCenter this top housing helps protectThe Waterway 550 0701 is an OEM lock ring assembly designed for the Waterway Pro Clean Plus cartridge filter series. The lock ring is the mechanism that secures the filter tank lid to the base under operating water pressure, creating a watertight seal that keeps the system pressurized and functioning properly throughout the filtration cycle. A cracked, warped, or broken lock ring is one of the most common causes of filter lid leaks and pressure loss