Check the listing for details. General Hydroponics Armor Si Plant Growth Enhancement, Quart. Color: BLUE,ORANGE,GREEN, Condition: New. Listed at 24.96 USD. General Hydroponics Armor Si Plant Growth Enhancement, Quart Features Armor Si is suitable for all types of plants during all stages of growthUse as a growth enhancer with irrigation water or in addition to your regular fertilizersArmor Si improves plant structure and foliar development, increases yield and improves flower and fruit production Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back or a replacement within 30 days. No questions asked!