Skip to content
Home
Shop
Collections
All Products
Soils & Media
Nutrients
Lighting, Bulbs, Ballast & Hardware
Grow Tents
Fabric Pots, Net Pots, Square Pots, & Saucers
Preventative Maintenance & Pest Control
Locations
About Us
Contact Us
USD
Region and language
Search
Country/Region
No results found
Afghanistan
AFN ؋
Åland Islands
EUR €
Albania
ALL L
Algeria
DZD د.ج
Andorra
EUR €
Angola
USD $
Anguilla
XCD $
Antigua & Barbuda
XCD $
Argentina
USD $
Armenia
AMD դր.
Aruba
AWG ƒ
Ascension Island
SHP £
Australia
AUD $
Austria
EUR €
Azerbaijan
AZN ₼
Bahamas
BSD $
Bahrain
USD $
Bangladesh
BDT ৳
Barbados
BBD $
Belarus
USD $
Belgium
EUR €
Belize
BZD $
Benin
XOF Fr
Bermuda
USD $
Bhutan
USD $
Bolivia
BOB Bs.
Bosnia & Herzegovina
BAM КМ
Botswana
BWP P
Brazil
USD $
British Indian Ocean Territory
USD $
British Virgin Islands
USD $
Brunei
BND $
Bulgaria
BGN лв.
Burkina Faso
XOF Fr
Burundi
BIF Fr
Cambodia
KHR ៛
Cameroon
XAF CFA
Canada
CAD $
Cape Verde
CVE $
Caribbean Netherlands
USD $
Cayman Islands
KYD $
Central African Republic
XAF CFA
Chad
XAF CFA
Chile
USD $
China
CNY ¥
Christmas Island
AUD $
Cocos (Keeling) Islands
AUD $
Colombia
USD $
Comoros
KMF Fr
Congo - Brazzaville
XAF CFA
Congo - Kinshasa
CDF Fr
Cook Islands
NZD $
Costa Rica
CRC ₡
Côte d’Ivoire
XOF Fr
Croatia
EUR €
Curaçao
ANG ƒ
Cyprus
EUR €
Czechia
CZK Kč
Denmark
DKK kr.
Djibouti
DJF Fdj
Dominica
XCD $
Dominican Republic
DOP $
Ecuador
USD $
Egypt
EGP ج.م
El Salvador
USD $
Equatorial Guinea
XAF CFA
Eritrea
USD $
Estonia
EUR €
Eswatini
USD $
Ethiopia
ETB Br
Falkland Islands
FKP £
Faroe Islands
DKK kr.
Fiji
FJD $
Finland
EUR €
France
EUR €
French Guiana
EUR €
French Polynesia
XPF Fr
French Southern Territories
EUR €
Gabon
XOF Fr
Gambia
GMD D
Georgia
USD $
Germany
EUR €
Ghana
USD $
Gibraltar
GBP £
Greece
EUR €
Greenland
DKK kr.
Grenada
XCD $
Guadeloupe
EUR €
Guatemala
GTQ Q
Guernsey
GBP £
Guinea
GNF Fr
Guinea-Bissau
XOF Fr
Guyana
GYD $
Haiti
USD $
Honduras
HNL L
Hong Kong SAR
HKD $
Hungary
HUF Ft
Iceland
ISK kr
India
INR ₹
Indonesia
IDR Rp
Iraq
USD $
Ireland
EUR €
Isle of Man
GBP £
Israel
ILS ₪
Italy
EUR €
Jamaica
JMD $
Japan
JPY ¥
Jersey
USD $
Jordan
USD $
Kazakhstan
KZT ₸
Kenya
KES KSh
Kiribati
USD $
Kosovo
EUR €
Kuwait
USD $
Kyrgyzstan
KGS som
Laos
LAK ₭
Latvia
EUR €
Lebanon
LBP ل.ل
Lesotho
USD $
Liberia
USD $
Libya
USD $
Liechtenstein
CHF CHF
Lithuania
EUR €
Luxembourg
EUR €
Macao SAR
MOP P
Madagascar
USD $
Malawi
MWK MK
Malaysia
MYR RM
Maldives
MVR MVR
Mali
XOF Fr
Malta
EUR €
Martinique
EUR €
Mauritania
USD $
Mauritius
MUR ₨
Mayotte
EUR €
Mexico
USD $
Moldova
MDL L
Monaco
EUR €
Mongolia
MNT ₮
Montenegro
EUR €
Montserrat
XCD $
Morocco
MAD د.م.
Mozambique
USD $
Myanmar (Burma)
MMK K
Namibia
USD $
Nauru
AUD $
Nepal
NPR Rs.
Netherlands
EUR €
New Caledonia
XPF Fr
New Zealand
NZD $
Nicaragua
NIO C$
Niger
XOF Fr
Nigeria
NGN ₦
Niue
NZD $
Norfolk Island
AUD $
North Macedonia
MKD ден
Norway
USD $
Oman
USD $
Pakistan
PKR ₨
Palestinian Territories
ILS ₪
Panama
USD $
Papua New Guinea
PGK K
Paraguay
PYG ₲
Peru
PEN S/
Philippines
PHP ₱
Pitcairn Islands
NZD $
Poland
PLN zł
Portugal
EUR €
Qatar
QAR ر.ق
Réunion
EUR €
Romania
RON Lei
Russia
USD $
Rwanda
RWF FRw
Samoa
WST T
San Marino
EUR €
São Tomé & Príncipe
STD Db
Saudi Arabia
SAR ر.س
Senegal
XOF Fr
Serbia
RSD РСД
Seychelles
USD $
Sierra Leone
SLL Le
Singapore
SGD $
Sint Maarten
ANG ƒ
Slovakia
EUR €
Slovenia
EUR €
Solomon Islands
SBD $
Somalia
USD $
South Africa
USD $
South Georgia & South Sandwich Islands
GBP £
South Korea
KRW ₩
South Sudan
USD $
Spain
EUR €
Sri Lanka
LKR ₨
St. Barthélemy
EUR €
St. Helena
SHP £
St. Kitts & Nevis
XCD $
St. Lucia
XCD $
St. Martin
EUR €
St. Pierre & Miquelon
EUR €
St. Vincent & Grenadines
XCD $
Sudan
USD $
Suriname
USD $
Svalbard & Jan Mayen
USD $
Sweden
SEK kr
Switzerland
CHF CHF
Taiwan
TWD $
Tajikistan
TJS ЅМ
Tanzania
TZS Sh
Thailand
THB ฿
Timor-Leste
USD $
Togo
XOF Fr
Tokelau
NZD $
Tonga
TOP T$
Trinidad & Tobago
TTD $
Tristan da Cunha
GBP £
Tunisia
USD $
Türkiye
USD $
Turkmenistan
USD $
Turks & Caicos Islands
USD $
Tuvalu
AUD $
U.S. Outlying Islands
USD $
Uganda
UGX USh
Ukraine
UAH ₴
United Arab Emirates
AED د.إ
United Kingdom
GBP £
United States
USD $
Uruguay
UYU $U
Uzbekistan
UZS so'm
Vanuatu
VUV Vt
Vatican City
EUR €
Venezuela
USD $
Vietnam
VND ₫
Wallis & Futuna
XPF Fr
Western Sahara
MAD د.م.
Yemen
YER ﷼
Zambia
USD $
Zimbabwe
USD $
More
Home
Shop
Collections
All Products
Soils & Media
Nutrients
Lighting, Bulbs, Ballast & Hardware
Grow Tents
Fabric Pots, Net Pots, Square Pots, & Saucers
Preventative Maintenance & Pest Control
Locations
About Us
Contact Us
More
USD
Region and language selector
Search
Country/Region
No results found
Afghanistan
AFN ؋
Åland Islands
EUR €
Albania
ALL L
Algeria
DZD د.ج
Andorra
EUR €
Angola
USD $
Anguilla
XCD $
Antigua & Barbuda
XCD $
Argentina
USD $
Armenia
AMD դր.
Aruba
AWG ƒ
Ascension Island
SHP £
Australia
AUD $
Austria
EUR €
Azerbaijan
AZN ₼
Bahamas
BSD $
Bahrain
USD $
Bangladesh
BDT ৳
Barbados
BBD $
Belarus
USD $
Belgium
EUR €
Belize
BZD $
Benin
XOF Fr
Bermuda
USD $
Bhutan
USD $
Bolivia
BOB Bs.
Bosnia & Herzegovina
BAM КМ
Botswana
BWP P
Brazil
USD $
British Indian Ocean Territory
USD $
British Virgin Islands
USD $
Brunei
BND $
Bulgaria
BGN лв.
Burkina Faso
XOF Fr
Burundi
BIF Fr
Cambodia
KHR ៛
Cameroon
XAF CFA
Canada
CAD $
Cape Verde
CVE $
Caribbean Netherlands
USD $
Cayman Islands
KYD $
Central African Republic
XAF CFA
Chad
XAF CFA
Chile
USD $
China
CNY ¥
Christmas Island
AUD $
Cocos (Keeling) Islands
AUD $
Colombia
USD $
Comoros
KMF Fr
Congo - Brazzaville
XAF CFA
Congo - Kinshasa
CDF Fr
Cook Islands
NZD $
Costa Rica
CRC ₡
Côte d’Ivoire
XOF Fr
Croatia
EUR €
Curaçao
ANG ƒ
Cyprus
EUR €
Czechia
CZK Kč
Denmark
DKK kr.
Djibouti
DJF Fdj
Dominica
XCD $
Dominican Republic
DOP $
Ecuador
USD $
Egypt
EGP ج.م
El Salvador
USD $
Equatorial Guinea
XAF CFA
Eritrea
USD $
Estonia
EUR €
Eswatini
USD $
Ethiopia
ETB Br
Falkland Islands
FKP £
Faroe Islands
DKK kr.
Fiji
FJD $
Finland
EUR €
France
EUR €
French Guiana
EUR €
French Polynesia
XPF Fr
French Southern Territories
EUR €
Gabon
XOF Fr
Gambia
GMD D
Georgia
USD $
Germany
EUR €
Ghana
USD $
Gibraltar
GBP £
Greece
EUR €
Greenland
DKK kr.
Grenada
XCD $
Guadeloupe
EUR €
Guatemala
GTQ Q
Guernsey
GBP £
Guinea
GNF Fr
Guinea-Bissau
XOF Fr
Guyana
GYD $
Haiti
USD $
Honduras
HNL L
Hong Kong SAR
HKD $
Hungary
HUF Ft
Iceland
ISK kr
India
INR ₹
Indonesia
IDR Rp
Iraq
USD $
Ireland
EUR €
Isle of Man
GBP £
Israel
ILS ₪
Italy
EUR €
Jamaica
JMD $
Japan
JPY ¥
Jersey
USD $
Jordan
USD $
Kazakhstan
KZT ₸
Kenya
KES KSh
Kiribati
USD $
Kosovo
EUR €
Kuwait
USD $
Kyrgyzstan
KGS som
Laos
LAK ₭
Latvia
EUR €
Lebanon
LBP ل.ل
Lesotho
USD $
Liberia
USD $
Libya
USD $
Liechtenstein
CHF CHF
Lithuania
EUR €
Luxembourg
EUR €
Macao SAR
MOP P
Madagascar
USD $
Malawi
MWK MK
Malaysia
MYR RM
Maldives
MVR MVR
Mali
XOF Fr
Malta
EUR €
Martinique
EUR €
Mauritania
USD $
Mauritius
MUR ₨
Mayotte
EUR €
Mexico
USD $
Moldova
MDL L
Monaco
EUR €
Mongolia
MNT ₮
Montenegro
EUR €
Montserrat
XCD $
Morocco
MAD د.م.
Mozambique
USD $
Myanmar (Burma)
MMK K
Namibia
USD $
Nauru
AUD $
Nepal
NPR Rs.
Netherlands
EUR €
New Caledonia
XPF Fr
New Zealand
NZD $
Nicaragua
NIO C$
Niger
XOF Fr
Nigeria
NGN ₦
Niue
NZD $
Norfolk Island
AUD $
North Macedonia
MKD ден
Norway
USD $
Oman
USD $
Pakistan
PKR ₨
Palestinian Territories
ILS ₪
Panama
USD $
Papua New Guinea
PGK K
Paraguay
PYG ₲
Peru
PEN S/
Philippines
PHP ₱
Pitcairn Islands
NZD $
Poland
PLN zł
Portugal
EUR €
Qatar
QAR ر.ق
Réunion
EUR €
Romania
RON Lei
Russia
USD $
Rwanda
RWF FRw
Samoa
WST T
San Marino
EUR €
São Tomé & Príncipe
STD Db
Saudi Arabia
SAR ر.س
Senegal
XOF Fr
Serbia
RSD РСД
Seychelles
USD $
Sierra Leone
SLL Le
Singapore
SGD $
Sint Maarten
ANG ƒ
Slovakia
EUR €
Slovenia
EUR €
Solomon Islands
SBD $
Somalia
USD $
South Africa
USD $
South Georgia & South Sandwich Islands
GBP £
South Korea
KRW ₩
South Sudan
USD $
Spain
EUR €
Sri Lanka
LKR ₨
St. Barthélemy
EUR €
St. Helena
SHP £
St. Kitts & Nevis
XCD $
St. Lucia
XCD $
St. Martin
EUR €
St. Pierre & Miquelon
EUR €
St. Vincent & Grenadines
XCD $
Sudan
USD $
Suriname
USD $
Svalbard & Jan Mayen
USD $
Sweden
SEK kr
Switzerland
CHF CHF
Taiwan
TWD $
Tajikistan
TJS ЅМ
Tanzania
TZS Sh
Thailand
THB ฿
Timor-Leste
USD $
Togo
XOF Fr
Tokelau
NZD $
Tonga
TOP T$
Trinidad & Tobago
TTD $
Tristan da Cunha
GBP £
Tunisia
USD $
Türkiye
USD $
Turkmenistan
USD $
Turks & Caicos Islands
USD $
Tuvalu
AUD $
U.S. Outlying Islands
USD $
Uganda
UGX USh
Ukraine
UAH ₴
United Arab Emirates
AED د.إ
United Kingdom
GBP £
United States
USD $
Uruguay
UYU $U
Uzbekistan
UZS so'm
Vanuatu
VUV Vt
Vatican City
EUR €
Venezuela
USD $
Vietnam
VND ₫
Wallis & Futuna
XPF Fr
Western Sahara
MAD د.م.
Yemen
YER ﷼
Zambia
USD $
Zimbabwe
USD $
Account
Other sign in options
Sign in
Orders
Profile
Account
Other sign in options
Sign in
Orders
Profile
Total items in cart: 0
0
General Hydroponics Standard Reference Solution PH 4.01 8oz
General Hydroponics Standard Reference Solution PH 4.01 8oz
$5.99 USD
Shipping calculated at checkout.
Decrease quantity
Increase quantity
Add to cart
Added
This item is a recurring or deferred purchase. By continuing, I agree to the
cancellation policy
and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Terms and Policies
Refund policy
Privacy policy
Terms of service
Shipping policy
Contact information
Search
Search
Clear
