Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Humboldts Secret pH Down for Plants, Liquid pH Adjuster Formula, 2.5 Gallon

Humboldts Secret pH Down for Plants, Liquid pH Adjuster Formula, 2.5 Gallon

Product ID: 638201633

Details

Brand
Humboldts
Global Trade Identification Number
Item Form
Liquid
Liquid Volume
320 Fluid
Specific Uses For Product
Plant care pH

🌱Optimizes pH 5.5-6.5 for nutrient uptake

💧2.5 gallons liquid formula

⚗️Highly concentrated phosphoric acid

RM1010

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🌿 Unlock your garden’s secret weapon for vibrant growth!

PRECISION P H CONTROL - Maintain the perfect 5.5-6.5 pH range for unstoppable plant vitality.
ULTRA CONCENTRATED FORMULA - Up to 25% stronger than competitors—less product, more power.
TRUSTED GROWER GRADE QUALITY - Made in California with pure phosphoric acid—no dyes, no fillers, just results.
STRESS FREE GROWTH FOUNDATION - Prevents nutrient lockout to fuel lush foliage and bountiful harvests.
VERSATILE GROWING COMPATIBILITY - Seamlessly works with soil, coco, hydroponics, and all your grow mediums.

Humboldts Secret pH Down is a professional-grade, highly concentrated liquid formula designed to quickly and precisely lower pH levels in soil, coco, and hydroponic systems. Maintaining an optimal pH range of 5.5 to 6.5, it prevents nutrient deficiencies and supports stronger roots, healthier plants, and increased yields. Proudly made in California with pure phosphoric acid and no additives, this 2.5-gallon solution delivers reliable, efficient results favored by growers worldwide.

Specifications

ASIN	B0CQ64MWBL
Best Sellers Rank	#44,344 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #112 in Hydroponic Nutrients & Additives
Brand	Humboldts Secret
Brand Name	Humboldts Secret
Coverage	Medium
Customer Reviews	4.7 out of 5 stars 483 Reviews
Global Trade Identification Number	00850058984117
Item Form	Liquid
Item Highlight	Concentrated Phosphoric Acid Solution, Supports Nutrient Uptake, Soil, Coco & Hydroponics, Maintains 5.5-6.5 pH, Easy Feeding
Liquid Volume	320 fluid ounces
Manufacturer	HS Supplies, LLC
Model Number	850058984117
Number of Items	1
Specific Uses For Product	Plant care, maintaining optimal pH level for plant growth
Target Species	plants
UPC	850058984117
Unit Count	320 Fluid Ounces

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.