Skip to content

Phone Email Facebook Instagram YouTube

Fresh New Look - Same Great Service Rooted in Excellence for 15 Years - Proudly Growing with the Best of the Industry!

GARDEN SUPPLY GUYS

Account

Open cart Shopping Cart Total: $0.00 0 products in your cart

$0.00 (0)

Garden Supplies
Nutrients
Grow Lights
Hydroponics
Environment
Grow Tents
Mushroom Supplies

Picking up? Select store

Menu

Garden Supplies
Nutrients
Grow Lights
Hydroponics
Environment
Grow Tents
Mushroom Supplies

Phone Email Facebook Instagram YouTube

Home/Collections/Calibration & Cleaning Solutions

Calibration & Cleaning Solutions

Filter:

Price

The highest price is $22.50 Reset

From $

To

$

Brand

0 selected Reset

Bluelab (1)
GardenSupplyGuys (1)
General Hydroponics (1)
Hanna Instruments (10)
HM Digital (1)

Size

0 selected Reset

230ml (1)
500ml (1)

Sort by:

14 products

Hanna® GroLine Electrode Cleaning Solution, 20 mL Sachets Hanna Instruments

Hanna® GroLine Electrode Cleaning Solution, 20 mL Sachets Hanna Instruments

Price: $2.29

Hanna GroLine Electrode Cleaning Solution, 20 mL Sachets

HANNA® Groline QuickCal Calibration Solution Sachet, 20 mL Hanna Instruments

HANNA® Groline QuickCal Calibration Solution Sachet, 20 mL Hanna Instruments

Price: $2.29

HANNA Groline QuickCal Calibration Solution Sachet, 20 mL

HANNA® Groline QuickCal Calibration Solution, 500 mL Hanna Instruments

HANNA Groline QuickCal Calibration Solution, 500 mL

Price: $22.50

HANNA Groline QuickCal Calibration Solution, 500 mL

HANNA® GroLine pH 4.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

HANNA® GroLine pH 4.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

Price: $2.09

HANNA GroLine pH 4.01 Calibration Buffer Sachets, 20 mL

HANNA® Groline pH 4.01 Calibration Buffer, 500 mL Hanna Instruments

HANNA® Groline pH 4.01 Calibration Buffer Solution, 500 mL

Price: $22.50

HANNA® Groline pH 4.01 Calibration Buffer Solution, 500 mL

HANNA® GroLine pH 7.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

HANNA® GroLine pH 7.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

Price: $2.29

HANNA GroLine pH 7.01 Calibration Buffer Sachets, 20 mL

HANNA® Groline pH 7.01 Calibration Buffer, 500 mL Hanna Instruments

HANNA Groline pH 7.01 Calibration Buffer Solution, 500 mL

Price: $22.50

HANNA Groline pH 7.01 Calibration Buffer Solution, 500 mL

HANNA® Electrode Storage Solution, 500 mL Hanna Instruments

HANNA GroLine Electrode Storage Solution

Price:From $18.50

HANNA GroLine pH Electrode Storage Solution

Bluelab® pH 4.0 Solution, 20 mL Sachet Bluelab

Bluelab® pH 4.0 Solution, 20 mL Sachet Bluelab

Price: $1.71

Bluelab pH 4.0 Solution, 20 mL Sachet

General Hydroponics® TDS Calibration Solution, 1500 ppm, qt General Hydroponics

Price: $19.35

General Hydroponics® TDS Calibration Solution, 1500 ppm, qt

GSG pH Probe KCl Storage Solution, 120 mL GardenSupplyGuys

Price: $10.95

GSG pH Probe KCl Storage Solution, 120 mL

HANNA® 1382 ppm TDS Calibration Solution, 230 mL Hanna Instruments

Price: $15.72

HANNA 1382 ppm TDS Calibration Solution, 230 mL

HANNA® Electrode Cleaning Solution, 500 mL

Price: $22.50

HANNA Electrode Cleaning Solution, 500 mL

HM Digital® TDS / EC Calibration Solution, 1000 ppm HM Digital

Price: $6.25

HM Digital TDS / EC Calibration Solution, 1000 ppm

Filter and sort

Filter:

Price

The highest price is $22.50 Reset

From $

To

$

Brand

0 selected Reset

Bluelab (1)
GardenSupplyGuys (1)
General Hydroponics (1)
Hanna Instruments (10)
HM Digital (1)

Size

0 selected Reset

230ml (1)
500ml (1)

Sort by:

Clear all

WE'RE LOCAL

For over 15 years, we've helped gardeners and growers succeed with quality products, fast shipping, and exceptional customer service. With a wide selection of inventory in stock and a real person always ready to answer the phone, we're proud to be your trusted one-stop garden supply partner.

Phone Email Facebook Instagram YouTube

Shop

Garden Supplies Nutrients Grow Lights Hydroponics Environment Greenhouses & Grow Tents

Contact us

GardenSupplyGuys

752 North Memorial Drive
Green Bay, WI 54303

920-857-9493

sales@gardensupplyguys.com

Quick links

About Us Warranty & Returns Shipping Policy Terms of Service Security & Privacy

Copyright © 2026 GARDEN SUPPLY GUYS.Powered by Shopify

Cookies

This website uses cookies to ensure you get the best experience on your device.

cookies-popups-0

Pickup location

GardenSupplyGuys Free Pickup. Usually ready in 1 hour!

752 North Memorial Drive
Green Bay, WI 54303

Store Hours
Sun: Closed
Mon-Sat: 9:00AM - 6:00PM

Rooted in Excellence for 15 Years - Proudly Growing with the Best of the Industry!

Closed

Closing at 6pm

Closing at 6pm

Closing at 6pm

Closing at 6pm

Closing at 6pm

Closing at 6pm

Shopping Cart (0)

Your cart is currently empty.

0 $0.00

Continue browsing

Order instructions

Order instructions

Discount codes

Discount codes

Total $0.00

Taxes and shipping calculated at checkout