Passive Unit Kit Mark I (No Column) Set of 2 provides simple and precise control

provides simple and precise control of a 240 Volt CO² generating device with modes for both increasing and decreasing CO²

This fan can be ducted but be aware of a 20% drop in air pressure for every 90° bend

as well as

These slabs are an ideal multi-year (2 year) slab

Passive Unit Kit Mark I (No Column) Set of 2 provides simple and precise controlAll MK I & MK II Passive Unit Kits consist of 304 and 316 Stainless Steel Columns and Fitok Fittings. Stainless Steel Braided PTFE Lined Hose and PTFE Gaskets with 150 micron Mesh Gasket and 1. 5" Borosilicate Sight Ports. Safety features including 150 psi Conrader Brass Pressure Relief Valves, 150 psi Stainless Steel Pressure Gauge and Nai Lok Ball Valves. Passive Unit Kits allow you to turn your already existing Closed Column Unit into a Full