
Pura UV (151121) O-Ring for UV-1 Sump
Technical Details
| Manufacturer | Hydrotech (Pura UV) |
| Part Number | 151121 |
| Compatible System | Pura UV-1 Sump |
| Material | Durable elastomer compound |
| Function | Sump seal and pressure gasket |
| Replacement Cycle | Every lamp change or annually |
| Temperature Range | 40°F to 100°F operating |
| Application | UV water disinfection systems |
Replacing the Sump O-Ring
- Shut off water supply and depressurize the UV system before disconnecting the sump from the cap assembly
- Remove the old O-ring from the groove in the sump rim, clean the seating surface thoroughly with a lint-free cloth to remove any debris or mineral buildup
- Lightly lubricate the new 151121 O-ring with food-grade silicone grease and seat it evenly in the groove, ensuring no twists or pinches
- Reattach the sump to the cap assembly and hand-tighten firmly, then restore water pressure and check for leaks around the seal
System Fit
This Pura UV 151121 O-Ring is engineered specifically for the UV-1 sump housing used in Pura and Hydrotech ultraviolet disinfection systems. It is not interchangeable with other UV system models or generic O-rings due to precise diameter and cross-section requirements. Always verify your sump model before ordering replacement seals to ensure proper fit and leak-free operation.
Technical Details
| Manufacturer | Hydrotech (Pura UV) |
| Part Number | 151121 |
| Compatible System | Pura UV-1 Sump |
| Material | Durable elastomer compound |
| Function | Sump seal and pressure gasket |
| Replacement Cycle | Every lamp change or annually |
| Temperature Range | 40°F to 100°F operating |
| Application | UV water disinfection systems |
Replacing the Sump O-Ring
- Shut off water supply and depressurize the UV system before disconnecting the sump from the cap assembly
- Remove the old O-ring from the groove in the sump rim, clean the seating surface thoroughly with a lint-free cloth to remove any debris or mineral buildup
- Lightly lubricate the new 151121 O-ring with food-grade silicone grease and seat it evenly in the groove, ensuring no twists or pinches
- Reattach the sump to the cap assembly and hand-tighten firmly, then restore water pressure and check for leaks around the seal
System Fit
This Pura UV 151121 O-Ring is engineered specifically for the UV-1 sump housing used in Pura and Hydrotech ultraviolet disinfection systems. It is not interchangeable with other UV system models or generic O-rings due to precise diameter and cross-section requirements. Always verify your sump model before ordering replacement seals to ensure proper fit and leak-free operation.
Original: $3.22
-65%$3.22
$1.13Description
Technical Details
| Manufacturer | Hydrotech (Pura UV) |
| Part Number | 151121 |
| Compatible System | Pura UV-1 Sump |
| Material | Durable elastomer compound |
| Function | Sump seal and pressure gasket |
| Replacement Cycle | Every lamp change or annually |
| Temperature Range | 40°F to 100°F operating |
| Application | UV water disinfection systems |
Replacing the Sump O-Ring
- Shut off water supply and depressurize the UV system before disconnecting the sump from the cap assembly
- Remove the old O-ring from the groove in the sump rim, clean the seating surface thoroughly with a lint-free cloth to remove any debris or mineral buildup
- Lightly lubricate the new 151121 O-ring with food-grade silicone grease and seat it evenly in the groove, ensuring no twists or pinches
- Reattach the sump to the cap assembly and hand-tighten firmly, then restore water pressure and check for leaks around the seal
System Fit
This Pura UV 151121 O-Ring is engineered specifically for the UV-1 sump housing used in Pura and Hydrotech ultraviolet disinfection systems. It is not interchangeable with other UV system models or generic O-rings due to precise diameter and cross-section requirements. Always verify your sump model before ordering replacement seals to ensure proper fit and leak-free operation.










