These o-rings now follow 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 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 #8 on the Baker Hydro/Waterco Vertilever Push Pull Valve exploded parts diagram.
🔧 Baker Hydro/Waterco Vertilever Push Pull Valve – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | O-Ring Kit, Waterco Baker Vertilever Valve |
| 26 | Plug, Waterco Baker Hydro Vertilever Valve, 1/4", w/O-Ring |
| 25 | 26-252-W001K25 |
| 24 | Linkage, Waterco Baker Vertilever Valve |
| 23 | Gasket, Waterco Baker Vertilever Valve, Index Plate |
| 22 | Nut, Waterco Baker Vertilever Valve, 10-32, SS |
| 21 | Screw, Waterco Baker Vertilever Valve, 10-32 x 1", SS |
| 20 | Screw, Waterco Baker Vertilever Valve, 10-32 x 1-1/4" |
| 19 | 27-252-1080 |
| 18 | Rivet, Waterco Baker Vertilever Valve, 1/8" x 1" |
| 17 | Rivet, Waterco Baker Vertilever Valve, 1/8" x 11/16" |
| 16 | O-Ring, 3/8" ID, 1/16" Cross Section, Generic |
| 15 | O-Ring, 1-3/4" ID, 3/16" Cross Section, Generic |
| 13 | Shaft Assembly, Waterco Baker Vertilever Valve |
| 12 | 27-252-1067 |
| 11 | Handle, Waterco Baker Vertilever Valve |
| 8 | Square Ring, 2-1/8" ID, 2-7/16" OD, Generic, O-435 ◀ this part |
| 7 | Bulkhead Adapter, Waterco Baker Hydro HRV/Vertilever |
| 6 | Bottom Cap, Pentair Sta-Rite HRP36/Waterco Baker Vertilever |
| 5 | Adapter Ring, Pentair StaRite HRP36/Waterco Baker Vertilever |
| 4 | Top Body, Pentair Sta-Rite HRP36/Waterco Baker Vertilever |
| 3 | Bottom Body, Pentair Sta-Rite HRP36/Waterco Baker Vertilever |
| 2 | Center Body, Pentair Sta-Rite HRP36/Waterco Baker Vertilever |
| 1 | Body Assy, Pentair Sta-Rite HRP36/Waterco Baker Vertilever |
🔧 Exploded diagram and parts
This part belongs to the Baker Hydro/Waterco Vertilever Push Pull Valve assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 7 | ![]() |
Bulkhead Adapter, Waterco Baker Hydro HRV/Vertilever | 31B0077 | 5 in stock | $82.88 | Add to cart |
| 11 | ![]() |
Handle, Waterco Baker Vertilever Valve | 31B0009 | Available to order | $163.51 | |
| 13 | ![]() |
Piston Assembly, Waterco Baker Vertilever Valve | 31B0005 | 1 in stock | $82.54 | Add to cart |
| 20 | ![]() |
Screw, Waterco Baker Vertilever Valve, 10-32 x 1-1/4" | 00B1006 | Available to order | $1.70 | Add to cart |
| 21 | ![]() |
Screw, Waterco Baker Vertilever Valve, 10-32 x 1", SS | 00B1005 | Available to order | $1.70 | Add to cart |
| 23 | ![]() |
Gasket, Waterco Baker Vertilever Valve, Index Plate | 31B0015 | 5 in stock | $8.41 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Silicone Based Lubricant 1oz 00150 | 00150 | 343 in stock | $5.26 | Add to cart |
![]() |
O-Ring Chart, Aladdin | MG1 | 17 in stock | $83.58 | Add to cart |














