
Quick overview
- Left-hand thread The spigot is left-hand threaded, so it tightens the opposite way to normal pipe thread. Do not force it as if it were standard.
- 2 inch NPT The drain spigot is 2 inch NPT.
- Genuine Pentair Factory part 152220Z, matched to the filter tank rather than adapted from generic fittings.
- Triton sand filters Listed for the Triton II and Triton C-3 side mount sand filter families.
- Two published model lists The part name cites TR140 and TR140C, the product listing cites TR100, TR100C and TR100C-3, so check yours against both.
- The winterizing part This is the drain you open to empty the tank before a freeze, and a seized or cracked one turns that job into a problem.
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Product details
The Pentair 152220Z is the sand filter drain with a 2 inch NPT left-hand threaded spigot, listed for the Triton II and Triton C-3 side mount sand filters. It is the genuine Pentair part.
Which model, exactly
The source information for this part is not consistent, so both readings are given. The product description names the Triton II and Triton C-3 models TR100, TR100C and TR100C-3. The part is also carried under the name sand drain kit for TR140 and TR140C. Compare the drain on your own tank to the part before ordering rather than assuming from the tank badge.
The left-hand thread
This spigot is left-hand threaded. That catches people out: turning it the way a normal fitting would go makes it feel seized, and enough force at that point cracks the boss on the tank. Turn it the other way and it moves.
Why it fails
A sand filter drain spends the season closed and gets asked to work once, at winterizing, usually in the cold. That is when the old one splits or refuses to seal again afterward. Replacing it is cheap insurance against a tank you cannot empty before a freeze.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 152220Z |
| UPC | 788379857950 |
| Type | Sand filter drain |
| Connection | 2" NPT left-hand threaded spigot |
| Listed fits, product description | Triton II and Triton C-3 sand filter models TR100, TR100C, TR100C-3 |
| Listed fits, part name | Sand drain kit for TR140, TR140C |
| Shipping weight | 0.4 lb |
| Ships | Parcel |
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