We are located at 821 Upshur Street NW in the rear unit.
Check out or new Brookland Location at 3744 10 st NE
Call us at 202-758-2572 or 202-248-2483.
Open 7 Days A week Mon-Fri 11-7p
Sat-Sun 11-5p
We are located at 821 Upshur Street NW in the rear unit.
Check out or new Brookland Location at 3744 10 st NE
Call us at 202-758-2572 or 202-248-2483.
Open 7 Days A week Mon-Fri 11-7p
Sat-Sun 11-5p
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$26.90
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at...
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$10.76
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at...
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$125.06
Gro'chek Replacement Probe for H19813-6
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$189.95
This continuous reading meter is ideal for agricultural, horticultural, and hydroponics applications where pH and...
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$54.85
pH combination electrode Ultem body double-junction, refillable, cloth junction, gel filled, 1m cable
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$104.36
This EC tester has been specifically designed to address the needs of operators in hydroponics,...
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$103.46
Waterproof and chemically resistant, this monitor has been designed to meet the grower's need for...
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$107.96
This pH indicator has been designed to meet the grower's need for equipment suited to...
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$175.46
Here is a waterproof tester that offers high accuracy pH, EC/TDS, and temperature measurements in...
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$189.86
This continuous reading meter is ideal for agricultural, horticultural, and hydroponics applications where pH and...
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$102.56
This tester has been specifically designed to address the needs of growers in hydroponics, greenhouses,...
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$222.26
This indicator continuously monitors the three most crucial nutrient parameters in hydroponic, greenhouse, and horticultural...
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$125.06
Keep your GroChek HI9813 pH temperature meter running strong with a companion replacement probe. The...
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$139.46
Keep your pH/conductivity/TDS tester running strong with a GroChek replacement probe. Built for the GroChek HI9813-0,...
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$122.36
This pH/EC/TDS/temperature probe probe features a fiber junction and gel electrolyte making it ideal for...
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$104.36
This TDS tester has been specifically designed to address the needs of operators in hydroponics,...
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$327.60
In just one glance it magically measures all 3 critical parameters for successful growth; pH,...
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$36.86
The pH Checker supplies users with fast and accurate readings from 0 to 14 pH...
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$175.45
This waterproof tester offers high accuracy pH, EC/TDS, and temperature measurements all in a single tester!...
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$455.95
With this direct soil pre-amplified pH and temperature probe, you can test both the pH of soil...
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$116.95
The pHEP 4 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability...
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$130.99
The pHEP 5 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge,...
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$272.99
HI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications...
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$213.95
The mini pH controller has been designed for easy, affordable installation in tight spaces, ideal...
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$34.99
Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter...
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$34.99
pH 7 is the most frequently used pH buffer. All Hanna solution bottles come with...
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$60.95
The Hanna Instruments HI1333B is a combination (full-cell) pH electrode with a single ceramic junction,...
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$192.95
pH Combo Electrode Glass Body - Refillable Temp. Sensor
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$219.99
This pH controller has been designed for easy, affordable installation in tight spaces, ideal for...
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$68.99
pH electrode with 2 m (6.6') cable for HI981401N, HI981404N, & HI9815047. Why keep a...
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$64.99
The pHep revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution...
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$29.95
Spare pH electrode for HI98103 and HI9910 with cloth junction, for general purpose, field applications....
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$72.99
Replacement pH Electrode for HI98127, HI98128, HI98129, & HI98130
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$135.00
This blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't...
821 Upshur Street NW, Washington DC
Located in the rear unit
202-758-2572
Get Directions
Store Location Hours
Cap City Organics 202-248-2483-Brookland-11am-7pm M-F 10am-6pm Sat
Closed Sundays
Cap City Hydro-Petworth-202-758-2572
11am-7pm Tues-Fri,11am-5pm Sat-Sun
Closed Mondays
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