SP1495Z1 Pool Pump Union O-Ring 2.10-Inch ID

When a pool pump union starts leaking, the problem may be a worn seal rather than the pump itself. This replacement O-ring is intended for compatible union assemblies using the 273062 or SP1495Z1 part number.

The pack includes four nitrile rubber O-rings, so you can replace the seal and keep spares on hand for later maintenance.

Its listed dimensions are approximately 2.10 inches inside diameter and 2.40 inches outside diameter. Matching those measurements and the fitting model matters more than choosing by appearance alone.

Key points

This is a replacement union O-ring for pool and spa pump plumbing. It is also listed for compatible filter, valve, and plumbing connections, where a worn, cracked, flattened, or aging ring may no longer seal properly. The nitrile material is intended to provide sealing support, the listing does not specify a service life, so replacement timing will depend on the condition of the existing ring and the assembly.

The compatibility list includes Hayward SP1495 and SP1495Z1, Pentair/American/PacFab/Purex 391029 and 273062, and additional references such as Jacuzzi 47-0227-02-R, Lasco 80227, and Waterway 8050227. These are listed part references, not a guarantee that every valve or union using those brands takes the same seal. Check the model and required part number before ordering.

Size & fit

Each O-ring measures approximately 2.10 inches inside diameter and 2.40 inches outside diameter. That makes the dimensions useful for checking an old ring, but the compatible union or valve model is still important: a close-looking seal may not sit correctly in the groove. Keep in mind that the product dimensions are approximate, without that measurement, a visual match alone is a shaky basis for choosing a replacement.

A practical check is to compare the assembly’s specified part number with the compatibility list, then compare the removed ring’s size if available. If the equipment label or manual identifies a different seal, follow that reference rather than assuming this one will fit.

Tips for day-to-day use

For a routine repair, inspect the old ring for cracks, flattening, or other visible wear, then make sure the replacement is seated in the union groove before reassembling the connection. The listing recommends using suitable pool lubricant, which is sold separately. The four-pack is useful if you want spares ready for future maintenance, but it does not include that lubricant.

Compared with buying a single replacement seal, a multipack gives you extras for later jobs. It is still a small part, so keeping the remaining rings clean and protected from damage makes more sense than leaving them loose in a tool bin.

Practical doubts

How many O-rings are included? Four are listed in the pack.

What material are they made from? The product description identifies nitrile rubber.

Is lubricant included? No. Suitable pool lubricant is sold separately, according to the listing.

When it makes sense

A solid pick if your pool or spa equipment calls for the 273062 or SP1495Z1 union O-ring, the dimensions match, and you want spare seals on hand for maintenance. It might not be a great match if you cannot confirm the union or valve reference, or if your repair requires a different seal size. For a straightforward replacement of a worn ring, this four-pack addresses the specific part, for an uncertain leak or a mismatch in model details, identifying the correct seal should come first.