Horticulture Source » Gardening & Hydroponics Store » HydroFarm: 4.0 250 ML Calibration Solution [hf-HD4CAL250]   Mobile   Secure |  My Account | Cart Contents | Checkout )
You have JavaScript disabled or are using a browser which does not support it. Please turn on JavaScript or consider upgrading or switching your web browser, e.g. FireFox or Opera.
Celebrating our 11th Year of Service to Gardeners in 91 Countries! Thank you for your business!
Categories
* Lamps / Tubes / Bulbs ++ (538)
* Lighting Systems ++ (1169)
* Nutrients & Supplements (4228)
* Composters & Compost Tea Brewing (43)
* Organic Gardening (539)
* Leaf Shines & Washes (97)
* Pest & Disease Control (572)
* Cloning & Propagation (449)
* Grow Systems ++ (653)
* Meters, Timers & Instruments ++ (666)
* Pots / Containers (1026)
* Pumps, Irrigation & Watering Supplies ++ (1673)
* Grow Media (537)
* Plant Seeds (60)
* Environmental Control ++ (1957)
* Greenhouses (89)
* Grow Rooms / Tents (166)
* Reflective / B&W Films (141)
* Garden Accessories ++ (1007)
* Hand Tools ++ (538)
* Gardening Books & DVDs (58)
* Growing Apparel & Bags (98)
Manufacturers more
What's New? more
FloraFlex FloraClips (12 pack)
dl-FF181
FloraFlex FloraClips (12 pack)
$3.61
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 15 guests online.
Ads
Product not found!
Continue
New Products For March
K104-BLUE Zenport K104-BLUE Serrated, straight 3 inch blade harvest/landscape  knife (Blue Handle)
K104-BLUE
Zenport K104-BLUE Serrated, straight 3 inch blade harvest/landscape knife (Blue Handle)

$2.60
hf-JSFC2KT Jump Start T5 24W 2' Standing Lighting System
hf-JSFC2KT
Jump Start T5 24W 2' Standing Lighting System

$26.85
MI013 Z7 Hydro System Cleanser & pH Stabilizer 1 Gallon Set
MI013
Z7 Hydro System Cleanser & pH Stabilizer 1 Gallon Set

$167.77
760441 FloraFlex Piercing 1/4 in 1 GPH Short Rocket Drippers (1=6/Bag)
760441
FloraFlex Piercing 1/4 in 1 GPH Short Rocket Drippers (1=6/Bag)

$4.37
eco-2882B Botanicare CNS17 Hydro Grow (3-2-4) - Gallon
eco-2882B
Botanicare CNS17 Hydro Grow (3-2-4) - Gallon

$19.25
713220 PARGRO® STONEWOOL QD BLOCKS - 3" X 3" X 2.5" (8 STRIP HOLE/WRAP) (24 WRAPS/CASE) (30 CASES/PALLET)
713220
PARGRO® STONEWOOL QD BLOCKS - 3" X 3" X 2.5" (8 STRIP HOLE/WRAP) (24 WRAPS/CASE) (30 CASES/PALLET)

$52.56
hf-HOF03815 Soy Ful Acid 2.5 Gallon
hf-HOF03815
Soy Ful Acid 2.5 Gallon

$58.28
hf-OK0065318 1413 US Solution 500 ml
hf-OK0065318
1413 US Solution 500 ml

$14.64
901616 Spectralux T8 32 Watt HO Lamp 4 ft Blue 6500K (25/Cs)
901616
Spectralux T8 32 Watt HO Lamp 4 ft Blue 6500K (25/Cs)

$2.67
723736 Down To Earth Neem Seed Meal - 5 lb
723736
Down To Earth Neem Seed Meal - 5 lb

$11.19
720204 Plant Sucess Mike O'Rizey 4oz (24/Cs)
720204
Plant Sucess Mike O'Rizey 4oz (24/Cs)

$5.14
744105 Grow Goggles Dark Green Fit Over (6/CS)
744105
Grow Goggles Dark Green Fit Over (6/CS)

$107.46
eco-1102034 CAN 100 CAN-FILTER Pre-Filter
eco-1102034
CAN 100 CAN-FILTER Pre-Filter

$11.76
904906 Super Sun DE (Double Ended) Reflector
904906
Super Sun DE (Double Ended) Reflector

$116.74
742490 Hydro Flow 3/4 in Figure Eight Poly Tube Clincher (Case of 50)
742490
Hydro Flow 3/4 in Figure Eight Poly Tube Clincher (Case of 50)

$15.77
dl-767009 Gro1 Green LED Rechargable Work Light
dl-767009
Gro1 Green LED Rechargable Work Light

$34.83
hf-CR37500 Ergo Weeder 6"
hf-CR37500
Ergo Weeder 6"

$6.97
dl-SNS217CON-16 SNS 217C Spider Mite Control Concentrate 16 oz
dl-SNS217CON-16
SNS 217C Spider Mite Control Concentrate 16 oz

$52.13
716732 La Crosse Alerts Remote Temperature and Humidity Monitoring System w/ Water Leak Detector
716732
La Crosse Alerts Remote Temperature and Humidity Monitoring System w/ Water Leak Detector

$31.48
hf-FN16AK Air King 16" Wall Mount Fan
hf-FN16AK
Air King 16" Wall Mount Fan

$59.53
700148 Clearoma Gel-Pak - Gallon
700148
Clearoma Gel-Pak - Gallon

$30.19
901529 ULTRASUN 250 Watt HPS
901529
ULTRASUN 250 Watt HPS

$9.64
708185 Hydro Flow Octa-Bubbler 10 GPH Per Outlet - Red High Flow Bubbler (Bag of 10)
708185
Hydro Flow Octa-Bubbler 10 GPH Per Outlet - Red High Flow Bubbler (Bag of 10)

$88.40
hf-RCT5 5 Gallon Smart Pot 12x9.5" TAN
hf-RCT5
5 Gallon Smart Pot 12x9.5" TAN

$4.54
717972 RAW Microbes Grow Stage 8 oz (6/Cs)
717972
RAW Microbes Grow Stage 8 oz (6/Cs)

$19.25
hf-SS6001 6' Sturdy Stake Heavy Duty, pack of 10
hf-SS6001
6' Sturdy Stake Heavy Duty, pack of 10

$28.01
hf-CF504118 Can 12" Flange
hf-CF504118
Can 12" Flange

$14.79
hf-CS53150 Phantom     CMh Cordset
hf-CS53150
Phantom CMh Cordset

$24.52
Shopping Cart more
0 items - Add an item to the cart to get a quote!
 Get Quote by adding products to the cart!
Shop By Price
Manufacturer Info
HydroFarm
HydroFarm Homepage
Other products
Reviews more
Write ReviewWrite a review on this product!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate


Tell A Friend
 
Share what you've found! Email a link to this page to friends, family, and colleagues!
Specials more
Dyna-Gro Root-Gel 4oz
Dyna-Gro Root-Gel 4oz
$13.83
$11.96
Similar Products
Hydroponic Essentials pH Down Gal, case of 4
hf-ESPHDGAL
Hydroponic Essentials pH Down Gal, case of 4
$64.22

4.0 pH Bluelab Calibration Solution 20ml, case of 25
hf-BLU420
4.0 pH Bluelab Calibration Solution 20ml, case of 25
$31.54

pH 7 Buffer Solution. 16 fl oz
NT705
pH 7 Buffer Solution. 16 fl oz
$8.61

pH 4.01 Calibration Solution 1 qt
hf-GH1542
pH 4.01 Calibration Solution 1 qt
$13.82

Probe Care Kit-pH
hf-BLU7003
Probe Care Kit-pH
$11.88

Languages
English Deutsch Español
Currencies
Ads
Amazon Ad
Matched Content
Ads

Customer Service

 

Shopping Help

 

My Account

 

Tools & Resources

BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate ShopWiki Certified Store Official PayPal Seal
Merchant Services
Secured by RapidSSL 100% Satisfaction Guaranteed  Proud Hydro for Hunger Participant
APO/FPO addresses are no problem.
International orders are always welcome!
UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2017 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order