Generic O-Ring [9-3/8" ID x 1/4" Cross Section] (90-423-6142) deltauv Bulkhead fittings help connect plumbing

Bulkhead fittings help connect plumbing through tanks and vessels while maintaining a sealed pass-through under operating pressure

This type of part is especially useful when the original rotating head is worn

Installing the correct Pentair/Letro hose can help restore cleaner performance and improve confidence in the feed-line assembly

A four-button topside panel can make the spa feel simple and dependable again when the original interface has become unreliable

Generic O-Ring [9-3/8" ID x 1/4" Cross Section] (90-423-6142) deltauv Bulkhead fittings help connect plumbingThe Generic 90 423 6142 O ring is designed for compatible sealing applications and features a 9 3 8 inch inside diameter with a 1 4 inch cross section. A seal like this is useful because it restores a larger O ring interface in assemblies where the original ring has worn down or no longer maintains a reliable seal. Larger O rings are commonly found in tank lids, housings, and other broad sealing surfaces where even pressure around the circumference