they are around 20 bucks, give or take a few$
latewood Reviewed by latewood on . New Hydro System You guys/gals might be interested in my new Hydro system. Its made with 5x5vinyl fence post with 3 3" holes in the top. This is an NFT system that has a stand that is made with 3/4" pvc tubing. It has a 396gph pump that pumps the nutrient into 2 4' sections. Check out the pics to see what I mean. Rating: 5