Skip to product information
NaN of -Infinity

ESSENTIALS

Essentials Lab Buffer 4

Essentials Lab Buffer 4

Low stock: 6 left

Regular price £3.00 GBP
Regular price Sale price £3.00 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.
 More payment options

Couldn't load pickup availability

Essentials LAB Buffer 4 is a precision calibration solution with a fixed pH of 4.0, used to calibrate pH meters and pens for accurate nutrient monitoring. This acidic buffer is essential for calibrating equipment that needs dual-point accuracy (e.g., pH 7.0 and pH 4.0), especially when working in environments where acidic nutrient solutions or runoff are common.

Made to laboratory-grade standards, Buffer 4 ensures your pH meter provides accurate, reliable readings, which is crucial for maintaining correct nutrient uptake and preventing pH-related plant issues in hydroponic, coco, or soil systems.


Key Features:

  • pH 4.0 solution – for low-range pH calibration

  • Ensures meter accuracy in acidic environments

  • Designed for dual-point calibration with Buffer 7

  • Suitable for all brands of pH meters and pens

  • Long shelf life and lab-grade consistency

  • Essential for growers using hydroponic, soil, or coco systems

  • Available in various bottle sizes


How to Use:

  1. Rinse the pH probe with distilled water.

  2. Submerge probe in Buffer 4 solution.

  3. Adjust meter until it reads 4.0.

  4. For highest accuracy, calibrate with Buffer 7 first, then Buffer 4.

  5. Clean and recalibrate regularly for consistent readings.


Specifications:

  • Type: pH calibration solution

  • pH Value: 4.0

  • Use: Calibration of pH meters and pens

  • Application: All grow systems – hydro, soil, coco

  • Available Sizes: 250ml, 1L (based on stock)

  • Storage: Cool, dark place; keep sealed when not in use

  • Shelf Life: Long-lasting when stored properly


Recommended Use:
Perfect for growers seeking accurate pH readings at lower ranges, Essentials LAB Buffer 4 is vital for maintaining pH control and nutrient precision, especially in flowering or acidic conditions.

View full details

Frequently Asked

Navigating the Effects of Brexit on International Trade ?

We are uniquely positioned in the North of Ireland and ship our products all over Ireland & Europe with Customs & Duty's already paid and cleared on your behalf. so don't worry there is no hidden or extra charges at delivery point

your order will arrive via DPD our delivery partner, your order will arrive discreetly packaged.

if you ever find our products cheaper on another store we will match their price, be assured when you order from us your package will arrive prompt and secure