Description

Aladdin O-83-9 is a replacement O-Ring catalogued under the ADV/PAC/STA reference. Aladdin builds its business on cross referenced seals for pool and spa equipment, so its part numbers are how these rings get matched rather than by brand of machine.

Order by number, then check

The source listing for this seal gives the part number and nothing about its dimensions. That is normal for an Aladdin catalog entry, and it is why the part number matters. Order O-83-9, then hold it against the ring that came out and compare inside diameter and cross section before the equipment goes back together. Two O-Rings that look identical in the hand can be a size apart, and a seal that is slightly wrong will pinch, roll out of its groove, or leak.

Fitting

Clean the groove properly, then fit the new ring with a light coat of a silicone based O-Ring lubricant. Petroleum greases attack rubber over time; silicone does not, and it lets the ring slide into place rather than twisting. A seal that goes in clean and lubricated will outlast one that was forced in dry.