How should I choose NPK Stack?

NPK Stack should be selected only after identifying the pest, weed, disease, treatment site, and application rate on the label. Read the label before use, confirm coverage rate and restrictions, and make sure it fits the area you plan to treat.

Can NPK Stack ship in the United States?

Toledo Indoor Garden ships eligible products within the United States. Available shipping options, rates, and estimated delivery timing are calculated during checkout from the selected cart and destination address.

What sizes does NPK Stack come in?

NPK Stack is available in 2 options: 8oz, 16oz. Select your preferred size on the product page to see pricing and availability.

What is the return policy for NPK Industries products?

Toledo Indoor Garden accepts returns within 30 days on unused, unopened NPK Industries products in original packaging. Contact us for return authorization before mailing a return; customer-paid return shipping applies unless the item arrived damaged or defective.

NPK Stack

SKU: NPK241

Size: 8oz

$58.95

$98.99

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Available to Order

Inventory may be in-store or supplier warehouse. Call 419-725-2450 to confirm same-day pickup.

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Quick answer

NPK Stack should be selected only after identifying the pest, weed, disease, treatment site, and application rate on the label.

Best fitTargeted plant, lawn, or greenhouse treatment where the label matches the crop, site, and problem.

Check before orderingRead the label before use, confirm coverage rate and restrictions, and make sure it fits the area you plan to treat.

Grower tipFor recurring pressure, combine sanitation, monitoring, and product rotation instead of relying on one treatment repeatedly.

Shopping guidance from Toledo Indoor Garden. Prices, availability, shipping rates, weights, and dimensions are verified during checkout.

NPK Stack is a flowering supplement from NPK Industries that works with all nutrient and feeding programs to promote early and consistent fruit and flower development.

Applied weekly as a foliar spray starting at the transition to bloom and continuing through weeks four and five, it delivers precise influencers that trigger natural plant reproductive functions.

Stack helps plants optimize their shift from vegetative growth to flowering, maximizing genetic potential during the critical bloom stage.

It is part of NPK Industries' Gold Series Technology line for growers seeking enhanced flowering and fruiting. 75 lbs, design Gold.

Weight: 0.75 lbs.

Dimensions: 10 x 7 x 4 in.

Available sizes: 8oz, 16oz.

Foliar Spray
Suitable for All Stages
Genuine NPK Industries product
Brand: NPK Industries
Category: Nutrients & Fertilizers > Supplements & Additives
2 selectable options

SKUNPK241

BrandNPK Industries

UPC847127004449

Weight0.75 lbs

Dimensions10 x 7 x 4 in

TypeFoliar Spray

Growth StageAll Stages

ColorGold

FormSpray

CategorySupplements & Additives

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NPK Stack

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