0 ratings
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
The MasterBlend 4-18-38 Fertilizer Combo Kit contains all 3 concentrated dry powdered and water-soluble components needed for the recommended recipe in the proper amounts, offering the convenience of one-stop shopping without compromising on effectiveness.
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
Item #: 21589078

MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)

Item #: 21589078

SGD 85

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Only 12 items left in stock.
Order now and get it around Saturday, September 05
Our Top Logistics Partners
  • fedex
  • dhl
The MasterBlend 4-18-38 Fertilizer Combo Kit contains all 3 concentrated dry powdered and water-soluble components needed for the recommended recipe in the proper amounts, offering the convenience of one-stop shopping without compromising on effectiveness.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified


paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Nutrient-Rich Formula
The MasterBlend 4-18-38 Fertilizer Combo Kit provides a balanced nutrient blend, promoting vigorous growth and optimal yield for various plants, addressing common deficiencies found in standard fertilizers.
Ease of Use
This combo kit simplifies fertilization with pre-measured portions, making it user-friendly for both beginners and experienced gardeners, ensuring precise application without the hassle of mixing complexities.
Versatile Application
Ideal for hydroponic systems, container gardens, or outdoor planting, this fertilizer adapts to diverse gardening needs, offering versatility that stands out against competitors, ensuring healthy plants in any environment.

Product Details

Shop MasterBlend 4-18-38 Fertilizer Combo Kit 12.5 Pounds online at Ubuy Singapore. Enhance plant growth with this high-quality fertilizer for all your gardening needs.
  • Tired of looking for the individual components (MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, Epsom Salt (Magnesium Sulfate) for the ultimate MasterBlend fertilizer recipe? Look no further. We have done the work for you. The MasterBlend MASTER KIT, contains all 3 concentrated dry powdered and water soluble components needed for the recommended recipe in the proper amounts, so you can get exactly what you need in one place, without having to pay separate shipping, and the hassle of finding the different components on your own.The classic MasterBlend recipe calls for 12g MasterBlend, 12g Calcium Nitrate, and 6g Epsom Salt for 5 gallons of nutrient solution, where each component is mixed into the water individually. (DO NOT BUY KITS THAT ARE PRE-MIXED! Nutrient lockout will occur and will be left as precipitates in your water)We have packed the MasterBlend Master kits in larger quantities to provide you with a better value in a one-stop kit.MasterBlend 4-18-38 Master Kit (3 Separate Components in correct amounts)Contains MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, and Epsom Salt (Magnesium Sulfate)Used by professionals worldwide for optimum plant growth100% Water Soluble for easy plant uptakePacked by weight in a 1/1/0.5 ratio based off the MasterBlend recipe of 12g MB, 12g CN, and 6g ESThe 2.5 Pound Kit contains: 1LB MasterBlend, 1LB Calcium Nitrate, 0.5LB Epsom Salt.The 12.5 Pound Kit contains: 5 LBS MasterBLend, 5 LBS Calcium Nitrate, 2.5 LBS Epsom Salt.The 25 Pound Kit contains: 10 LBS MasterBlend, 10 LBS Calcium Nitrate, and 5 LBS Epsom Salt.
Npk ratio4-18-38
Fertilizer typeSynthetic
FormCrystals
Rec. usePlant
BrandPowerGrow Systems
Rec locationOutdoor
Plant categoryVegetables
Plant nameTomato|Vegetable
FeaturesBreathable
Product lineMasterBlend
Size12.5 lbs
Net content statement12.5 lb
Weight12.5 lbs (5.67 kg)
Product net content parent12.5 Pound
Product net content uomPound
ManufacturerPowerGrow Systems

Who Should Buy?

Suitable For
  • Container Gardeners

    Ideal for gardeners using containers who need a reliable fertilizer for growth and nutrient balance.

  • Hydroponic Systems

    Perfect for hydroponic setups, providing essential nutrients to promote healthy plant development.

  • Vegetable Growers

    Great for those growing vegetables, ensuring plants receive necessary nutrients for optimal yields.

Not Suitable For
  • Flower-Focused Gardens

    Not suitable for flower gardens needing a higher ratio of phosphorus for blooming.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: Can I mix the components in this kit together?

    Answer: No, each component should be mixed into the water individually as per the recommended recipe to avoid nutrient lockout.
  • Question: How much nutrient solution does this kit yield?

    Answer: This kit contains components in amounts suitable for 5 gallons of nutrient solution, based on the classic MasterBlend recipe.
  • Question: Is the MasterBlend fertilizer suitable for all types of plants?

    Answer: MasterBlend is a widely used fertilizer that has shown to benefit plant growth across various plant types, making it versatile for many plant varieties.

PowerGrow Systems Garden Chemicals & Treatments Editorial Review

MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds) is specially designed for outdoor use, making it ideal for growing various vegetables, including tomatoes. With a specific NPK ratio of 4-18-38, this synthetic fertilizer comes in crystal form, which ensures easy application and effective nutrient delivery to your plants. Users have appreciated its breathable formulation, which helps promote healthy plant growth. This product is suitable for anyone looking to enhance their vegetable garden, making it easier to achieve lush and productive plants.

Customer Reviews & Ratings

50 customers ratings
  • 5 Star
    92%
  • 4 Star
    2%
  • 3 Star
    2%
  • 2 Star
    2%
  • 1 Star
    2%

Review this product

Share your thoughts with other customers

Pros

  • Ideal for outdoor vegetable gardening
  • Breathable formulation promotes healthy plants
  • Effective NPK ratio for vegetable growth
  • Easy to apply in crystal form
  • Specifically formulated for tomatoes

Cons

  • Crystals may require careful handling during use

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.