Hayward Jacks 1oz Multilube Lube (SPX0327) gshop and this generic version is

and this generic version is sized with a 31-1/2 inch inside diameter and 5/16 inch cross-section using the O-105 reference

Designed for 325 square foot compatible applications

Replacing the correct Waterway plug helps keep the filter internals complete and ready for service

That helps restore scheduling function without redesigning the broader control arrangement

Hayward Jacks 1oz Multilube Lube (SPX0327) gshop and this generic version isThe Hayward Jacks Multilube lubricant is designed for compatible pool and spa service applications where seals, O rings, and related components need lubrication during maintenance. A lubricant is useful because it helps reduce friction, support smoother assembly, and protect sealing surfaces during installation or routine service. This product is especially useful when replacing O rings, gaskets, lids, unions, and valve parts that benefit from proper