How much does it cost to manually fill saline flush syringes?

Is it REALLY cheaper to make my own saline flush syringes?
Cost of 1 liter bag of saline:*
The average cost of a 1 liter bag of saline is $6.00. You can change the value to reflect your actual cost.
3mL10mL
Number of syringes per 1 liter bag of saline
Total time spent filling one syringe (minutes):*
Includes gathering supplies, opening syringe, taking cap off syringe, spiking bag and filling syringe.
Total time to empty a saline bag (minutes)
Labor rate for the person filling the syringe (hourly rate):*
Labor rate per minute
Cost of labor per syringe
Cost of saline per syringe
Cost of device used to spike bag to allow for saline withdrawal into syringe:*
The average cost of this device is $3.00. You can change the value to reflect your actual cost.
Cost of syringe, cap, and label:*
The average cost of these supplies is $0.25. You can change the value to reflect your actual cost.
- TOTAL COST OF MANUALLY FILLING 1 SALINE FLUSH SYRINGE:
- Now compare this cost to MILA's pre-filled saline flush syringes!
  
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- Should be Empty:

Is it REALLY cheaper to make my own saline flush syringes?