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METERS & SOLUTIONSckgroundckgroundckgroundckgroundpH UP & pH DOWN – pH ADJUSTINGSOLUTIONSTo maximize plant growth, the pH content of your nutrientsshould be slightly acidic. Experienced growers consider theideal pH for most crops to fall between 5.5 and 6.5. Whenthe pH of the nutrient is not ideal, use the pH Up & DownAdjusting Solutions. For example, acid content can reachunacceptable levels when nutrient solutions are mixedwith poor quality water or pH unstable media such as whenrockwool and gravel products are used, or when high plant growth ratesdestabilize the nutrient mix due to rapid nutrient absorption by the crop.ITEM CODE DESCRIPTION SRPPH UP LIQUIDGH1521 pH Up Base, 8 oz $7.54GH1522 pH Up Base, 1 qt 10.76GH1523 pH Up Base, 1 gal 26.90PH DOWN LIQUIDGH1531 pH Down Acid, 8 oz $7.54GH1532 pH Down Acid, 1 qt 10.76GH1533 pH Down Acid, 1 gal 26.90PH UP DRY CONCENTRATEGH1525 pH Up Dry Base, 1.5 lbs $15.00GH1527 pH Up Dry Base, 16 lbs 106.00PH DOWN DRY CONCENTRATEGH1535 pH Down Dry Acid, 1.5 lbs $10.76GH1537 pH Down Dry Acid, 16 lbs 64.50CALIBRATION SOLUTIONSGeneral Hydroponics uses the highestquality electronic meter referencesolutions. Growers can use these referencesolutions widely among many popularbrands of meters using the NaCl scale.Technicians check each batch to ensure thatthese solutions are exactly calibrated foreach and every time they are used.ITEM CODE DESCRIPTION SRPGH1541 pH 4.01 Calibration Solution, 8oz $7.54GH1542 pH 4.01 Calibration Solution, 1 qt 21.50GH1551 pH 7.0 Calibration Solution, 8 oz $7.54GH1552 pH 7.0 Calibration Solution, 1 qt 21.50GH1571 1500 ppm Calibration Solution, 8 oz $8.20GH1572 1500 ppm Calibration Solution, 1 qt 21.50pH TEST INDICATORSimply fill a test-tube halfway with nutrient, add a few drops of pHTest Indicator, and observe the coloration of the liquid in the testvial. Many experienced growers prefer this pH Test Kit to expensiveelectronic meters because of its reliability and ease of use.ITEM CODE DESCRIPTION SRPGH1514 pH Control Kit $17.20GH1515 pH Test Kit, 1 oz 7.54GH1516 pH Test Indicator, 8 oz 10.76EARTH JUICE DOUBLE UP TM& DOUBLE DOWN TMThe "best choice" forliquid pH adjusters.Proprietary formulationthat offers superior pH control.ITEM CODE DESCRIPTION SRPHOH81101 Double Up, 1 qt $11.56HOH81201 Double Up, 1 gal 25.87HOH85101 Double Down, 1 qt $11.56HOH85201 Double Down, 1 gal 25.87EARTH JUICE NATURAL UP& NATURAL DOWNThese pH adjusting crystals will, once and for all,eliminate the hassles and worries of spilling, splashingand dealing with harsh liquid pH adjusters. Use toadjust the pH of fertilizer and plant micronutrient foliarsolutions.ITEM CODE DESCRIPTION SRPHOH81511 Earth Juice Natural Up, 1 lbs. $10.24HOH81512 Earth Juice Natural Up, 2 lbs 18.41HOH84033 Earth Juice Natural Up, 10 lbs 70.10HOH84034 Earth Juice Natural Up, 30 lbs 202.19HOH84021 Earth Juice Natural Down, 0.8 lbs $9.10HOH84022 Earth Juice Natural Down, 1.6 lbs 16.38HOH84023 Earth Juice Natural Down, 7.8 lbs 58.42HOH84024 Earth Juice Natural Down, 25 lbs. 168.50HYDRO RX WATER & SOIL ANALYSISTEST KITTakes the guess work out of water management. A kitthat lets you manage your plant’s nutrients with labtestedprecision. It’s simple: just take a wateror soil sample and send it back to HydrofarmTest Lab in the enclosed mailing envelope,and within 2-4 days, you’ll receive a detailedanalysis of your plant’s water. Test results areavailable online or by email.ITEM CODE DESCRIPTION SRPHGLABTEST Hydro RX Testing w/Hang Tag $39.95hydrofarm.com | 209