How should I choose Grotek Cal-Max, 1 gal?

Grotek Cal-Max, 1 gal should be matched to your growing media, water source, crop stage, feeding style, and pH/EC monitoring plan. Confirm the listed SKU, dimensions, and ship weight match the version you want before checkout.

Can Grotek Cal-Max, 1 gal 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.

Is Grotek Cal-Max, 1 gal available to order?

Availability is shown on this page and may reflect in-store inventory or supplier warehouse inventory. Call Toledo Indoor Garden before ordering if you need availability, handling timing, or shipping confirmation.

What is the return policy for Grotek products?

Toledo Indoor Garden accepts free 30-day parcel returns on unused, unopened Grotek products in original packaging after return authorization. Freight, LTL, oversized, special-order, or commercial items may require customer-paid return freight unless the item arrived damaged or defective.

Grotek Cal-Max, 1 gal

Name: Grotek Cal-Max, 1 gal
Brand: Grotek
SKU: GTCLMXGAL
Price: 45.33 USD
Availability: InStock

SKU: GTCLMXGAL

$45.33

Available to Order

Inventory may be in-store or supplier warehouse. Call 419-725-2450 to confirm availability, handling timing, or shipping.

Questions? Call 419-725-2450

Quick answer

Grotek Cal-Max, 1 gal should be matched to your growing media, water source, crop stage, feeding style, and pH/EC monitoring plan.

Best fitGrowers building a nutrient program around a specific media type, water source, and crop stage.

Check before orderingConfirm the listed SKU, dimensions, and ship weight match the version you want before checkout.

Grower tipStart from the label or feed chart, measure pH and EC, and increase strength only after plants show they are handling it.

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

During periods of high temperatures and accelerated growth, plants can develop nutrient deficiencies, which are preventable. Cal-Max^™ was developed to provide the additional calcium, magnesium and iron needed to support peak production.

Applied as a foliar spray, this product can help even in environments where nutrient translocation from roots to leaves is difficult or not occurring at all. Cal-Max™ can be used to treat nutrient deficiency problems when they surface. It can also be used as a preventative supplement in your nutrient program to avoid nutrient deficiency related problems such as tip burn in lettuce and blossom end rot in tomatoes.

Cal-Mag Supplement
Suitable for Veg
Genuine Grotek product
Brand: Grotek
Category: Nutrients & Fertilizers > Supplements & Additives
Listed weight: 11.2 lbs

SKUGTCLMXGAL

BrandGrotek

UPC670829815125

Weight11.2 lbs

Dimensions8.1 x 5.1 x 10.6 in

Sold Aseach

TypeCal-Mag Supplement

Growth StageVeg

NPK N2%

NPK K0%

NPK P0%

NPK2-0-0