How much does this cost to the nearest dollar?

Aquatec 6800 Booster Pump Kit for up to 100 GPD Home RO Reverse Osmosis Water Filter System Standard or Manifold, Includes Pump, Pressure Switch Transformer, B221 Made in USA
If your water supply is from a well or the water supply pressure is below 50 psi, then it is recommended that you add this pump kit to your RO system setup to increase the water supply pressure to 60 to 80 psi range to optimize the performance of your RO system. PLEASE MAKE SURE your RO system is in working condition, and it can make water and turn on/off correctly. If your RO system is not working correctly or not making water, then you need to fix the RO system and replace filters. This pump is not able to fix a non-working RO system

Price is $118.00
Price: $118