{"product_id":"general-hydroponics-ph-control-kit-4-piece-ph-up-ph-down-and-test-indicator-pickup-in-store-only","title":"General Hydroponics pH Control Kit - 4 Piece - pH Up, pH Down and Test Indicator - Pickup in Store Only","description":"\u003cp\u003eThe General Hydroponics pH Control Kit is a complete set for measuring and correcting reservoir pH. The pH test indicator reads from pH 4.0 to 8.5; then pH Up or pH Down brings the solution back into range. Most crops do best at about pH 5.5 to 6.5.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes 8 oz pH Up, 8 oz pH Down, 1 oz pH Test Indicator and a test vial\u003c\/li\u003e\n\u003cli\u003eTest: add 3 drops of indicator to a vial filled halfway and compare to the color chart\u003c\/li\u003e\n\u003cli\u003eAdjust only after nutrients are fully mixed in fresh water; stir and re-test\u003c\/li\u003e\n\u003cli\u003eNever mix undiluted pH Up and pH Down\u003c\/li\u003e\n\u003cli\u003eNo batteries or calibration needed\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePickup in store only\u003c\/strong\u003e because the kit contains corrosive liquids.\u003c\/p\u003e","brand":"General Hydroponics","offers":[{"title":"4 piece kit","offer_id":67607479353535,"sku":"GH1514","price":15.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9334\/4191\/files\/sq_kit.jpg?v=1791490350","url":"https:\/\/www.dsgardensupplies.com\/products\/general-hydroponics-ph-control-kit-4-piece-ph-up-ph-down-and-test-indicator-pickup-in-store-only","provider":"DS Garden Supplies","version":"1.0","type":"link"}