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
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This blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't...
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One of a kind in the industry. Olympus is derived from micronized limestone designed to...
Everything you need to clean, hydrate and calibrate pH probes as well as clean and...
ORP standard solutions allow you to test the precision of ORP electrodes. For example, by...
pH sampling assembly, allows for more accurate readings. Sampling kit includes a submersible pump, 3/4"...
Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH...
HI 99104 is an ideal pocket tester designed with a 0.01 pH resolution and two...
Experience ease and simplicity in taking pH, µS/cm, ppm (mg/L), and temperature measurements with this...
Hanna's buffer solutions are made from established formulas and are standardized with a pH meter...
All Hanna solution bottles come with a pH Vs. temperature chart together with the production...
Primo testers provide a fast and dependable way to measure the total dissolved solids or...
This replacement probe supports the combination pH electrode for field applications. The HI 9026 is...
Salinity (NaCI) Calibration solution 30G/L
Handy for direct pH testing of soils or pH soil solutions. The non-refillable Bluelab Soil...
Single-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just...
Hanna storage solutions are prepared with high-grade potassium chloride and potassium hydrogen phthalate by titration...
Conductivity and Total Dissolved Solids measurements have never been easier. DiST's ease-of-use, in combination with...
The pHep® 4 tester is for users that require the greatest accuracy and features while...
Have you ever had your water analyzed? The hydroponics water test kit gives growers an...
821 Upshur Street NW, Washington DCLocated in the rear unit202-758-2572Get Directions
Store Location HoursCap City Organics 202-248-2483-Brookland-11am-7pm M-F 10am-6pm Sat
Cap City Hydro-Petworth-202-758-2572
11am-7pm Tues-Fri,11am-5pm Sat-Sun
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