TRS21 Active Closed Loop Recovery Kit Configuration:Upgraded TRS21 It's perfect for testing swimming

It's perfect for testing swimming pools

lush vegetation

and soilless rooting media

2-3 times at one week intervals

Grow and Bloom are also extremely concentrated

TRS21 Active Closed Loop Recovery Kit Configuration:Upgraded TRS21 It's perfect for testing swimmingThis is an Upgrade Kit which can be added to any one of our passive systems making it into an "Active" Closed Loop System. The Active Recovery Upgrade Kit will increase recovery times by condensing the vapor a lot faster than just a hot cold differential. This will increase efficiency and productivity, many professionals use this method, as this drives profits. This Kit Includes the Following: TRS21 Refrigerant Recovery Pump Best Value Vacs Large