Power Si

Power Si is stocked by 7 independent online stores we track, across 22 listings in 2 currencies. Every price below was read from that retailer's own catalogue and is shown in the currency it charges — nothing here is exchange-rate converted.

Stores
7
Listings
22
Median price
66.11 USD
in USD; sold in 2 currencies
Discounted
4
⌀ 60.0% off

Where to buy Power Si

Price gaps between retailers can be real positioning — or simply different currencies. A Shopify catalogue does not state its currency, so treat a wide gap as a question.

StoreCountryProductsCheapestMedianOn sale
theharvestco.comUS529.99 USD39.99 USD—
cheapandeasyhydrostore.comUS455.95 USD102.5 USD—
growspacehydrostore.comUS428.99 USD74.99 USD4 (⌀60% off)
hydropros.comUS314.99 USD24.99 USD—
astralgrow.comCA284.95 CAD87.45 CAD—
perrishydroponics.comUS21065 USD4,898.5 USD—
evolvegardensupply.comUS2235.2 USD336 USD—

Power Si products, biggest discounts first

ProductStorePriceWasOff
Power Si GRANULAR 10kggrowspacehydrostore.com59.99 USD840 USD−92.9%
Power Si Power Start 2 Poundgrowspacehydrostore.com89.99 USD184 USD−51.1%
Power Si PK Synergy 500 mlgrowspacehydrostore.com28.99 USD56 USD−48.2%
Power Si Power Start 5 Poundgrowspacehydrostore.com220 USD420 USD−47.6%
Power Si, Bloom, Premium Flowering & Maturation Formula (5 Liter)perrishydroponics.com8732 USD——
Power Si, Bloom, Premium Flowering & Maturation Formula (500 mL)perrishydroponics.com1065 USD——
Power Startevolvegardensupply.com436.8 USD——
Power Si BLOOM 5L (1-2-0.5)cheapandeasyhydrostore.com309.95 USD——
Power PK Synergyevolvegardensupply.com235.2 USD——
Power Si Silicic Acid (Original) 1L (1-3-1)cheapandeasyhydrostore.com125 USD——
Power Si Originalastralgrow.com89.95 CAD——
Power Si Bloomastralgrow.com84.95 CAD——
Power Si BLOOM 1 Liter (1-2-0.5)cheapandeasyhydrostore.com80 USD——
Power Si Bloomhydropros.com72.22 USD——
Power SI PK Synergy 1 Liter (12/cs)cheapandeasyhydrostore.com55.95 USD——
Power Si Granular Slow-Release Silica Fertilizer 0.9-0.8-0.8, Extended-Release Soil Supplementtheharvestco.com53.2 USD——
Power Si Original Liquid Silica Fertilizer 1-3-1, Silicic Acid Biomix for Hydroponicstheharvestco.com51.99 USD——
Power Si Bloom Liquid Silica Fertilizer, Bioavailable Silicon Flowering Boostertheharvestco.com39.99 USD——
Power Si Start Microbial Root Enhancer, Mycorrhizae & Nitrogen-Fixing Bacteria Supplementtheharvestco.com29.99 USD——
Power Si PK Synergy Microbial Bloom Fertilizer, Phosphorus & Potassium Boostertheharvestco.com29.99 USD——
Power Sihydropros.com24.99 USD——
Power Si Lushhydropros.com14.99 USD——

Not affiliated with or endorsed by Power Si. Prices are observations from public retailer catalogues and may be out of date. Request removal.