Airscape WHF Series Airscape WHF 1.0: $1,599.00 CFM: 600 dBA/Stones: 43 Watts: 78 Vent Size Required: 1.5′ Interior Grill Opening: 15″x25″ Order with Installation: $1,599 + Tax Order without Installation: Not Available + Tax/Shipping Airscape WHF 1.7: Pricing: $1,950.00 CFM: 1000 dBA/Stones: 59 Watts: 157 Vent Size Required: 2′ Interior Grill Opening: 15″x25″ Order with Installation: $1,950.00 + Tax Order without Installation: Not Available + Tax/Shipping Airscape WHF 2.5e: Pricing: $2,639.00 CFM: H: 2536 L: 1530 Home Size: up to 3500 SQFT dBA/Stones: H: 50 L: 37 Watts: H: 197 L: 44 Vent Size Required: 5 SQFT Interior Grill Opening: 16″ x 24″ Order with Installation: $2,639.00 + Tax Order without Installation: + Tax/Shipping Airscape WHF 2.5: Pricing $2,379.00 CFM: 2500 dBA/Stones: 59 Watts: 292 Vent Size Required: 2.5′ Interior Grill Opening: 15″ x 25″ Order with Installation: $2,379.00 + Tax Order without Installation: Not Available + Tax/Shipping Airscape WHF 4.5: Pricing: $2,839.00 CFM: H: 4673 L: 3100 dBA/Stones: H: 55 L: 46 Watts: H: 852 L: 705 Vent Size Required: 9 SQFT Interior Grill Opening: 24″x28″ Order with Installation: $2,839.00 + Tax Order without Installation: Not Available + Tax/Shipping