Powerplus says their patented SOVC turbo suction technology doubles the suction of any TM.
check it out http://www.powerplusonline.com/pdf/SOVC.pdf
Here's the quote from their site:
The SOVC upgrade module delivers Powerplus-patented turbo suction technology to any truck mount. SOVC doubles suction power and reduces drying times by 50%. The SOVC kit replaces the manual relief valve with an electronically-controlled valve system maximizing the suction power of your truckmount. Powerplus includes everything needed to easily install the SOVC module on any truckmount. Standard SOVC kits retail for $1,102.62. The new SOVC-2 kits for truckmounts with 47 blowers and larger retail for $1,378.80. Add $57.39 for the universal installation kit required for either SOVC model.
SOVC-1 Module $1,681
SOVC-2 Module (for 47 blowers and larger) $1,911
check it out http://www.powerplusonline.com/pdf/SOVC.pdf
Here's the quote from their site:
The SOVC upgrade module delivers Powerplus-patented turbo suction technology to any truck mount. SOVC doubles suction power and reduces drying times by 50%. The SOVC kit replaces the manual relief valve with an electronically-controlled valve system maximizing the suction power of your truckmount. Powerplus includes everything needed to easily install the SOVC module on any truckmount. Standard SOVC kits retail for $1,102.62. The new SOVC-2 kits for truckmounts with 47 blowers and larger retail for $1,378.80. Add $57.39 for the universal installation kit required for either SOVC model.
SOVC-1 Module $1,681
SOVC-2 Module (for 47 blowers and larger) $1,911