Versatile Hydroponics is known for high quality products and their knowledgeable quick to return support staff. And Nothing changes here, now offering a 4 pack of their widely popular versa 3.5G DWC Hydroponics Grow Kit in a easy to use passive connected gravity feed system. Do you ask what’s the difference between this and just the regular four pack well this comes with a reservoir unit that allows you to be more gentle with your plants as you only need to add nutrient solution to one bucket that you don’t have any plants growing in to feed Your buckets that do have plants in them. Better for the plants less shock less root exposure. Also a lot easier on you and time saving as you only need to check one bucket instead of four. Versatile Hydroponics thrives to provide the some of the highest quality products in the hydroponic world. As they pick only products that they use snd tested themselves. Not allowing themselves to replace quality for a chesper product. Thats why they use 90 mil food grade buckets as well as have improved some of the items by adding in a dusl airline quick connect into each lid. And they want to remind you that if they wont use it they wont sell it because “We Grow To Just Lijke You”. Shipped with UPS Ground. Free shipping and returns