Best water-soluble NPK 19:19:19 fertilizers
Researched by Deal.ai's shopping agent across stores on November 12, 2026. Prices below are today's.
Top pick: Geolife NPK 19:19:19 — a true 19-19-19 that's fully water-soluble, so it dissolves cleanly for fertigation, drip lines or a watering can. That's the one to start with.
Who the others suit:
- 19-19-19 All Purpose Fertilizer — the flexible choice: sold in several pack sizes, so you can buy small for a garden or bulk for a field.
- 19-19-19 (Triple 19) and 19-19-19 Fertilizer — straightforward granular triple-19 for soil application and turf; both list their nitrogen breakdown but don't state water solubility.
- Katyayani NPK 19:19:19 combo — for foliar spraying, with a growth regulator included; ships from India, so duties may apply.
- Campbells Diamond Special T — a water-soluble feed, but its ratio is 8.2-3.9-32.2, not 19-19-19, so it's for potassium-hungry flowering and fruiting crops rather than balanced feeding.
If you need a guaranteed-dissolving powder in a small pack, say so and I'll narrow it further.
The picks
- #1
Geolife NPK 19:19:19
- Nitrogen content: 19%
- Phosphorus content: 19%
- Potassium content: 19%
- Water solubility: 100 % water soluble
- Dosage: 1-2gm/Liter
- Mode of application: Foliar spray / Fertigation
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It checks today's price at every store, compares the alternatives and answers in about a minute.
