Aladdin O-245-0 #232 O-Ring – Pentair 35505-7438 / 35505-1246

Exact #232 O-Ring for System 3, Sta-Rite, SwimQuip & Waterway Applications

• Aladdin O-245-0 replacement O-ring for verified filter, valve and union applications.
• Key Pentair / Sta-Rite cross-references: 35505-7438 and 35505-1246.
• Additional verified references include Hayward SPX0735H, SwimQuip 14930-32 / 14930-0032 and Waterway 805-0232B.
• Aladdin lists O-245-0 for Crystal Water, Duetta, Sta-Rite, SwimQuip and System 3 equipment families.
• Common aftermarket sizing identifies O-245 as AS568 #232, approximately 2-3/4 in. ID × 1/8 in. cross-section; match by OEM part number whenever possible.

Quick Product Summary

The Aladdin O-245-0 is a multi-application replacement O-ring used across several pool filter, valve and union assemblies. Aladdin’s current catalog links O-245-0 to Crystal Water, Duetta, Sta-Rite, SwimQuip and System 3 equipment and cross-references several OEM numbers, including Pentair / Sta-Rite 35505-7438 and 35505-1246.

One of the clearest current applications is the Sta-Rite System 3 modular D.E. filter. Pentair’s current replacement-parts catalog identifies 35505-7438 as the O-ring used with the filter’s elbow and bulkhead assembly. O-245-0 is also cross-referenced to Hayward SPX0735H, SwimQuip 14930-32 / 14930-0032 and Waterway 805-0232B, so it should be treated as a specific multi-use equipment seal rather than a universal O-ring.

Published aftermarket dimensional references identify O-245 as AS568 #232, approximately 2-3/4 inches inside diameter with a 1/8-inch cross-section. Because the same size appears in different equipment locations, verify the exact OEM number, equipment model or parts diagram before ordering.

Best For

Replacing a worn O-ring in a verified System 3 filter elbow/bulkhead, Sta-Rite or SwimQuip valve application, Hayward ball-valve connector, Waterway union or another assembly whose parts documentation calls for O-245-0 or one of its verified cross-references.

Why Exact O-Ring Matching Matters

• Direct aftermarket cross-reference for Pentair / Sta-Rite 35505-7438 and 35505-1246.
• Verified across filter, valve and union applications rather than one single equipment family.
• Helps avoid substituting a visually similar O-ring with the wrong diameter or cross-section.
• Useful when servicing leakage at the exact component joint specified in the equipment parts diagram.

Common Signs / Use This When

• The existing O-ring is flattened, cracked, cut, distorted or missing.
• Water is leaking at the System 3 elbow/bulkhead, compatible valve connection or union where this seal is specified.
• The equipment parts diagram calls for 35505-7438, 35505-1246, SPX0735H, 14930-32 / 14930-0032 or 805-0232B.

Product Specifications

Compatibility / Fitment Notes

O-245-0 is used in multiple equipment locations. Pentair identifies 35505-7438 as the O-ring for the elbow and bulkhead assembly on compatible System 3 modular D.E. filters, while Aladdin also cross-references O-245-0 to additional valve and union applications. Confirm the exact OEM number and component location before ordering.

Installation / Use Notes

Shut the circulation system off and relieve pressure before opening the filter, valve, union or other serviceable component. Remove the old O-ring, clean the groove and mating surfaces, and inspect the surrounding component for cracks, debris or damage. Install O-245-0 evenly without twisting, pinching or overstretching it. Reassemble according to the equipment manufacturer’s instructions and inspect the joint for leakage after startup. Follow the equipment manufacturer’s guidance for any approved O-ring lubricant.

Buy with Confidence

Benchmark Pool Supply helps customers match pool-equipment seals by exact OEM number and equipment application. O-245-0 has several verified cross-references, including Pentair / Sta-Rite 35505-7438 and 35505-1246, making part-number verification the most reliable way to distinguish it from similar-size O-rings.

Frequently Asked Questions

What is Aladdin O-245-0 used for?

It is a multi-use O-ring for verified filter, valve and union applications, including Crystal Water, Duetta, Sta-Rite, SwimQuip and System 3 equipment.

Does O-245-0 replace Pentair 35505-7438?

Yes. Aladdin cross-references O-245-0 to 35505-7438, and Pentair identifies 35505-7438 as the O-ring used with the elbow and bulkhead assembly on compatible System 3 modular D.E. filters.

Does O-245-0 replace Pentair / Sta-Rite 35505-1246?

Yes. 35505-1246 is a verified Aladdin cross-reference for O-245-0.

What size is the O-245-0 O-ring?

Common aftermarket references identify O-245 as AS568 #232, approximately 2-3/4 inches inside diameter with a 1/8-inch cross-section. Confirm fitment by OEM part number.

Does O-245-0 cross-reference Hayward and Waterway parts?

Yes. Aladdin lists Hayward SPX0735H and Waterway 805-0232B among the verified references for O-245-0.