Captain O-Ring – Replacement 3.5” O-Rings for APEC Essence, Ultimate Reverse Osmosis RO Water Filter Housings (4 Pack) (Version B (O-Ring-Set-B))
Product details
| Management number | 250155583 | Release Date | 2026/09/17 | List Price | US$4.00 | Model Number | 250155583 | ||
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Get your leaking RO filter housings back in working order with Captain O-Ring’s replacement o-ring set. Includes four (4) o-rings so you can keep your system in top shape. Compatible with APEC Ultimate and Essence Reverse Osmosis Drinking Water Systems. Compatible with APEC Reverse Osmosis Filter Housing Models: RO-45, RO-90, RO-PERM, RO-PUMP, ROES-50, ROES-PH75, ROES-UV75, ROES-UV75-55 and ROES-PHUV75. This o-ring is available in two versions to cover different dates of these models: Version A (P/N: O-RING-SET) is compatible with APEC ESSENCE RO units made before June, 2013 and ULTIMATE RO units made before May 2015. Version B (P/N: O-RING-SET-B) is compatible with APEC ESSENCE RO units made after June, 2013 and ULTIMATE RO units made after May 2015. O-Rings measure approximately 3.5” diameter and are slightly over 1/8” thick. Version A and B are very similar in size, but vary slightly. Check the info above to determine which version you need for your system. Version B is slightly smaller than Version A. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!
- 4 Pack of o-rings (also called gaskets or seals) compatible with APEC Ultimate and Essence RO Reverse Osmosis Drinking Water Systems.
- Version A (P/N: O-RING-SET) is compatible with APEC ESSENCE RO units made before June, 2013 and ULTIMATE RO units made before May 2015. Version B (P/N: O-RING-SET-B) is compatible with APEC ESSENCE RO units made after June, 2013 and ULTIMATE RO units made after May 2015 (see images for more info).
- Compatible with APEC Reverse Osmosis Filter Housing Models: RO-45, RO-90, RO-PERM, RO-PUMP, ROES-50, ROES-PH75, ROES-UV75, ROES-UV75-55 and ROES-PHUV75.
- O-Rings measure approximately 3.5” diameter and are slightly over 1/8” thick. Version A and B are very similar in size, but vary slightly (Version B is slightly smaller than Version A). Check the info above and images to determine which version you need for your system.
- Molded from Buna-N rubber for long lasting performance and reliability. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!
| UPC | 810061941392 |
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| ASIN | B0CJG7K4SW |
| Color | Black (rubber) |
| Model | ROES-50 |
| Set Name | 4 Pack |
| Brand Name | Captain O-Ring |
| Unit Count | 4 Count |
| Part Number | O-RING-SET / O-RING-SET-B |
| Manufacturer | Captain O-Ring LLC |
| Item Diameter | 3.5 inches |
| Material Type | Synthetic Rubber |
| Item Type Name | O-Ring |
| Number of Items | 4 |
| Number of Pieces | 4 |
| Included Components | O-Rings |
| Nominal Inside Diameter | 3.4 inches |
| Nominal Outside Diameter | 3.5 inches |
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