IWS Flood & Drain: Pots & Stands IWS Outer Pot The IWS Outer Pot holds your choice of IWS Inner Pot. In a flood & drain system, the IWS Outer Pot also provides the possibility to flood the substrate from underneath. IWS Inner Punched Pot The IWS Inner Punched Pot makes the most of the space inside the IWS Outer Pot. Its has straight sides with a drainage area covering the bottom. You can use this with any growing medium of choice. IWS Inner Aqua Pot The IWS Inner Aqua Pot is made to sit within the IWS Outer Pot as a part of an IWS hydroponic System. It works as a net pot with drainage areas covering the bottom and the sides of the pot. The IWS Inner Aqua Pot is best used with free draining growing mediums such as clay pebbles. IWS Stand Robust black plastic IWS pot stand, raises the pots by up to 2″. Suitable for Flood and Drain systems. IWS Inner Drilled Pots Highly robust IWS inner pots, offering efficient drainage, premium quality plastic, modern design and easy maintenance. Ideal for containing both media and crops simultaneously. IWS Outer Pot The IWS Outer Pot holds your choice of IWS Inner Pot. In a flood & drain system, the IWS Outer Pot also provides the possibility to flood the substrate from underneath. IWS XL Stand Robust black plastic IWS pot stand, raises the pots by up to 2″. Suitable for Flood and Drain systems. Can be used with 25L or 16L pots and are an easy way to upgrade your system to the next level.