Horizon is now utilizing the AS568A O-Ring standard used by the O-Ring industry in order to bring a standardized approach to the pool and spa industry. The current active Horizon part number for an o-ring is 90-423-5xxx, where xxx represents the AS568A designation. This designation ranges from -001 thru -932, in order of smallest to largest first by cross section then by diameter. Please see substitute item number under “Quick info” for the current SKU for this item.
Exploded parts diagram: This part is shown as item #7 on the Cartridge Filter, Jacuzzi TRI-C.L.O.P.S., TC-330/450/550/600 exploded parts diagram.
🔧 Cartridge Filter, Jacuzzi TRI-C.L.O.P.S., TC-330/450/550/600 – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 20c | Cartridge, 180 sqft, ct, 4"ob, 7-3/4", 34-3/4" 4oz |
| 20b | Cartridge, 147 sqft, ct, 4"ob, 7-3/4", 28-3/4" 4oz |
| 20a | 16-105-W005K20A |
| 19c | 16-105-W005K19C |
| 19b | 16-105-W005K19B |
| 19a | 16-105-W005K19A |
| 18 | Manifold, Carvin TC, Round Style |
| 17 | 16-105-W005K17 |
| 16 | 16-105-W005K16 |
| 15 | O-Ring, 2-1/4" ID, 1/8" Cross Section, Generic |
| 14 | Manifold, Jacuzzi TC |
| 13 | 16-105-W005K13 |
| 12 | Retainer Ring, Jacuzzi EW/TC |
| 11 | 16-105-W005K11 |
| 10 | Retaining Knob, Carvin TC, with Washer |
| 9 | O-Ring, 1" ID, 1/8" Cross Section, Generic |
| 8 | Tank Body, Carvin EW/TC |
| 7 | O-Ring, 20" ID, 7/16" Cross Section, Generic, O-101 ◀ this part |
| 6 | 16-105-W005K6 |
| 5 | 16-105-W005K5 |
| 4 | O-Ring, 1/2" ID, 3/32" Cross Section, Generic |
| 3 | Air Bleed Knob, Carvin CFR/TC/EW/SEP/SherLok, w/O-Ring |
| 2 | Tee Air Bleed, Carvin TC/EW |
| 1 | 16-105-W005K1 |














