How much does this cost to the nearest dollar?

Ultima Reverse Osmosis Membrane 24 GPD
New model, OEM replacement membrane for all Ultima Water Systems 5, 6, 7, and 7000 reverse osmosis systems. Will also work on most reverse osmosis systems with a flow restrictor rated at 150ml to 200ml. Includes the new service manual How to Service Your Reverse Osmosis System by Dionicio Porras. Service your reverse osmosis system like a pro! 24 Gallon per day for all Ultima Water Systems reverse osmosis models 5, 6, 7, and 7000. Will work with most RO systems with a flow restrictor rated at 150ML to 200ML. Will reduce TDS in your water 

Price is $56.00
Price: $56.15