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Tsunami Desiccant Tower Replacement for Pure 7, 10, 20, 30, and Ultra Series Dryers 21999-0349
Regular price
$267.30
Made in USA
Tsunami Desiccant Tower Replacement for Pure 7, 10, 20, 30 & Ultra Series Dryers 21999-0349
Factory replacement desiccant tower (purple) for Tsunami Pure-7, Pure-10, Pure-20, Pure-30, and Ultra Series regenerative air dryers. The molecular sieve desiccant inside each tower is what pulls water vapor out of your compressed air under pressure — and after years of cycling, its capacity fades. Tsunami recommends replacing desiccant towers every 3–5 years depending on usage.
Worth knowing:
- Direct-fit tower for Pure-7/10/20/30 and Ultra Series dryers — swap takes basic hand tools
- Filled with molecular sieve desiccant for dew points down to -80°F in Ultra systems
- Don't wait on the color indicator: most moisture indicators don't begin changing color until about 20% relative humidity — replace on schedule, not on color
- Made in Monticello, Minnesota by ISO 9001:2015-certified Suburban Manufacturing
The tower replacement walk-through video and the dryer installation manuals are on this page. Multi-tower dryers should have all towers replaced at the same time so both drying and regeneration sides age together.
Documents
Overview
| Product family | Dryer Replacement Part |
|---|---|
| Series | Pure-7, 10, 20, 30 & Ultra Series |
| Country of origin Where this product is manufactured, per the manufacturer / supplier documentation. | United States |
Filtration & Service
| Service interval | Replace desiccant towers every 3–5 years depending on usage |
|---|
Physical & Application
| Application notes | Molecular sieve desiccant tower for Tsunami Pure-7, Pure-10, Pure-20, Pure-30, and Ultra Series regenerative air dryers. Color-changing moisture indicators typically do not begin changing until about 20% relative humidity — replace on schedule, not color alone. |
|---|
In the Box
| What's included | Replacement desiccant tower (purple), molecular sieve desiccant |
|---|
Why Tsunami? Premium vs. Standard Filtration
| Standard / economy filter | Tsunami | |
|---|---|---|
| Body | Die-cast housing, polycarbonate bowl | Machined 6061 aircraft aluminum, anodized inside & out |
| Max pressure | Typically 150 PSI | 250 PSI rated |
| Draining | Manual petcock — works only if you remember | Automatic float, electronic, or pneumatic drain |
| Serviceability | Disposable — replace the whole unit | Rebuildable with drop-in service kits |
| Duty | Intermittent / light shop use | Continuous industrial duty, surge-tolerant oversized tubes |
| Made in | Imported | Monticello, MN — ISO 9001:2015 certified manufacturer |