# K993212: Dryasol Acid Concentrate Mix

- Pathway: 510(k) (Special)
- Applicant: Diasol, Inc.
- Decided: Oct 22, 1999 after 28 days
- Product code: KPO (Dialysate Concentrate For Hemodialysis (Liquid Or Powder))
- Device class: 2
- Regulation: 21 CFR 876.5820
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
7 later devices descend from it; 2 cite it directly.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K130511: Citrisol Acid Concentrate (2014), 5 descendants of its own
- K171750: Citric Complete Dry Citric Acid (45X) (2018), 2 descendants of its own
- K223431: Citric Complete Liquid Citric Acid Concentrate (2023), 1 descendant of its own
- K260799: Nipro Dry Acid Concentrate Mixer (2026), 0 descendants of its own
- K193155: Nipro Dry Complete Dry Acid Concentrate for Hemodialysis (2020), 0 descendants of its own

## Indications for use
Dryasol Acid Concentrate mix is indicated for use in acute and chronic hemodialysis. It is an accessory to be used with the appropriate hemodialysis machine in the exact prescribed proportion with RO water and Sodium Bicarbonate Mix

Source page: https://510kreport.com/device/K993212
Methodology: https://510kreport.com/methodology