Now switching to our Industrial Product segment, our local currency sales increased 2% as we experienced a wide range of business conditions. Starting first in our Industrial Filtration Solutions business, revenues were up 8% as sales of our new Torit dust collection equipment and our sales of replacement filters for those systems already in the field have remained strong.
Sales in Gas Turbine were up 6% in the quarter, driven mainly by strong replacement filter sales. I should note that we also had a number of major new systems in process during the quarter and are now very confident of a strong second half for Gas Turbine System sales, which I will cover in more detail in a few minutes.
And finally, sales in our Special Applications Products decreased 15% as the solid sales growth from our newer product line serving the membrane, semi-con and venting markets was offset by the flooding in Thailand and its impact on our hard disk drive customers. We talked a little bit about this in our last call, and I wanted to give you an update on this situation. So let me explain a little bit about what happened in the hard disk drive market.
As you know and you may recall, we have two cleanroom production facilities where we manufacture our disk drive filters, one in Thailand and the other in China. Our cleanroom in Thailand is located southeast of Bangkok and is outside of the flood plain. So it remained high and dry during the floods that began ravaging a large portion of Thailand in October.However, several of our hard disk drive customers’ facilities and many of their other suppliers in Thailand were under water for a portion of the period from October until early December. As a result, there were severe supply shortages of critical components that caused disk drive industry volumes to contract by about 40% during this first part of our second quarter. Read the rest of this transcript for free on seekingalpha.com