How much does this cost to the nearest dollar?

Tjernlund GPAK1 Complete Vent System for Gas Heaters Up to BTU
GPAK1 gas vent packages combine a HS1 Power Venter, VH1-4 Vent Hood and 4 Barometric Draft Control to make it easier for the wholesaler to inventory and the contractor to order. GPAK Series Power Venter's include a factory prewired Fan Proving Switch and UC1 Control with pre and post purge to purge the vent system of residual flue gases after burner cycle has completed. ETL Certification and package concept make the GPAK a popular Side Wall Venting solution. All operating components located indoors for weather protection and easy servicing Accommodates vent pipe runs up to 100 equivalent feet Regulated, consistent draft throughout burner cycle Built-in Fan Proving Switch

Price is $691.00
Price: $690.68