Pentair Rainbow High Sq Ft Feeder Silicone Lube (R172036Z) bypassvalves Faceplates are useful because they

Faceplates are useful because they help complete the visible installation while the gasket supports sealing at the skimmer interface

Use 519-8311 when a direct replacement is needed for compatible Waterway equipment

Designed for compatible 407A burner-area applications

A replacement is often needed when the original wall fitting shows signs of cracking

Pentair Rainbow High Sq Ft Feeder Silicone Lube (R172036Z) bypassvalves Faceplates are useful because theyThis silicone lubricant is formulated for Rainbow high square foot feeder service points where O rings and sealing surfaces need smooth assembly and protection. Proper lubrication helps reduce pinching, binding, and premature wear during maintenance, especially on feeder lids, unions, or threaded components exposed to chemical residue. Use a light, even application on compatible seals rather than overloading the part. Keeping feeder seals lubricated