Exploded parts diagram: This part is shown as item #2 on the Sight Glass, Pentair exploded parts diagram.
🔧 Sight Glass, Pentair – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Sight Glass Nut, Pentair, 8-32 |
| 4 | Sight Glass End Cap, Pentair, 1-1/2" Slip |
| 3 | Sight Glass Screw, Pentair, 8-32 x 3" |
| 2 | Gasket, Pentair Sight Glass, 2"ID, 2-1/2"OD ◀ this part |
| 1 | 26-110-W051K1 |
🔧 Exploded diagram and parts
This part belongs to the Sight Glass, Pentair assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | |
|---|---|---|---|---|
| 1 | ![]() |
Sight Glass, Pentair, Pyrex, 1-1/2" Spigot | 51006000 | 1 in stock |
| 4 | ![]() |
Sight Glass End Cap, Pentair, 1-1/2" Slip | 51013200 | Available to order |
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Sight Glass Nut, Pentair, 8-32 | 619312 | 3 in stock |
Parts that go with this
| Part | Our part number | Availability | |
|---|---|---|---|
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Silicone, DOW 732, 10.1oz Cartridge, Clear | DC-732-CLR-10.3 | 43 in stock |
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Silicone, DOW 732, 3oz Tube, Clear | DC-732-CLR-3 | 186 in stock |














