--- product_id: 42223037 title: "MASTERBLEND 4-18-38 Complete Combo Kit Fertilizer Bulk (2.5 Pound Kit)" brand: "masterblend" price: "VT15613" currency: VUV in_stock: true category: "Master Blend" url: https://www.desertcart.vu/products/42223037-masterblend-4-18-38-complete-combo-kit-fertilizer-bulk-2 store_origin: VU region: Vanuatu --- # 100% water soluble 1:1:0.5 mixing ratio 3-component precision mix MASTERBLEND 4-18-38 Complete Combo Kit Fertilizer Bulk (2.5 Pound Kit) **Brand:** masterblend **Price:** VT15613 **Availability:** ✅ In Stock ## Summary > 🌱 Unlock your plants’ full potential with the ultimate nutrient trifecta! ## Quick Answers - **What is this?** MASTERBLEND 4-18-38 Complete Combo Kit Fertilizer Bulk (2.5 Pound Kit) by masterblend - **How much does it cost?** VT15613 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/42223037-masterblend-4-18-38-complete-combo-kit-fertilizer-bulk-2) ## Best For - masterblend enthusiasts ## Why This Product - Trusted masterblend brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pro-Grade Bulk Kit:** 2.5 lbs packed by weight for long-lasting, consistent feeding cycles - • **Effortless Absorption:** 100% water soluble formula ensures rapid nutrient uptake and zero residue - • **Versatile Hydroponic Powerhouse:** Optimized for both aerated systems and Kratky method—grow anywhere, anytime - • **Trusted by Experts & Influencers:** Top-rated by hydroponic pros and YouTube growers alike—join the elite green thumbs - • **Precision-Engineered Nutrient Trio:** MasterBlend, Calcium Nitrate & Epsom Salt perfectly balanced for peak plant health ## Overview The MASTERBLEND 4-18-38 Complete Combo Kit is a professional-grade, water-soluble fertilizer system combining MasterBlend, Calcium Nitrate, and Epsom Salt in a precise 1:1:0.5 ratio. Designed for hydroponics and soil-less growing methods, this 2.5-pound bulk kit delivers balanced nitrogen, phosphorus, potassium, calcium, and magnesium to maximize plant growth and yield. Trusted worldwide and highly rated, it’s the go-to solution for millennial growers seeking efficient, scalable, and proven nutrient performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B072F2BL9D | | Best Sellers Rank | #8,179 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #320 in Garden Fertilizers | | Brand Name | MasterBlend | | Coverage | Full | | Customer Reviews | 4.7 4.7 out of 5 stars (4,731) | | Item Form | Powder | | Item Weight | 10 Pounds | | Liquid Volume | 5 Liters | | Manufacturer | MasterBlend | | Mixing Ratio | 1:1:0.5 | | Model Number | MASTERBLEND-COMBO_2.5LB-KIT | | Part Number | AACXZSG-119 | | Specific Uses For Product | Plant Growth | | Target Species | Plants | | Unit Count | 1 Count | ## Product Details - **Brand:** MasterBlend - **Item Form:** Powder - **Item Weight:** 10 Pounds - **Liquid Volume:** 5 Liters - **Specific Uses For Product:** Plant Growth ## Images ![MASTERBLEND 4-18-38 Complete Combo Kit Fertilizer Bulk (2.5 Pound Kit) - Image 1](https://m.media-amazon.com/images/I/81IOGyGwDGL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I am planting lettuce using hydroponic, my tank is 70liters , what is the mixture for lettuce for my size of tank** A: The common formula seems to be 10G + 10G + 5G in 5 gallons of water for lettuce. 70 liters = about 18.5 gallons. I'll just make my math 18.5 gallons divided by 5 gallons = 3.7 So it would be 37G + 37G + 18.5G . I imagine most people would say 2G + 2G + 1G per gallon. 70 liters = 18.5 gallons, so once again the answer is 37G of Calcium + 37 of Masterblend + 18.5G of Epsom salt. **Q: How long would the 25 pound kit last for a average hydroponics user? Many years? Any examples from your guy's own experience?** A: Yes for me it will last years I have 2 55 gallon drums with a cucumber and watermelon plant in each. And 10 5 gallon buckets with a mix of cucumbers tomatoes and peppers. 2 plants in each I will not put anything with cucumbers next year they drink too much. And two 7 gallon seed starting tubs. Anyway I could do this for years. On the amount I have and I mixed up 20 or so gallons for other people. **Q: Does this generally tend to raise or lower pH?** A: Lowers the ph . If I use my tap water which is about 8.3 it ends up perfect at 5.6 to 5.9 . If I use rain water which is closer to 7 it ends up a tad too low so I add ph up. **Q: May I use this fertilizer for chili pepper plants growing in the ground?** A: Yes you can. I made a batch of this solution and used it on peppers in the garden and I had the most bountiful harvest of peppers possible. ## Frequently Bought Together - MASTERBLEND 4-18-38 Complete Combo Kit Fertilizer Bulk (2.5 Pound Kit) - Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing (25 POUNDS) - Southern Ag Calcium Nitrate - 5 Pound Bag --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/42223037-masterblend-4-18-38-complete-combo-kit-fertilizer-bulk-2](https://www.desertcart.vu/products/42223037-masterblend-4-18-38-complete-combo-kit-fertilizer-bulk-2) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*