Check the listing for details. 8 dia. Automatic (Pneumatic) Sealed UHMW Self-Cleaning Blast Gate 24VDC/110VAC. Condition: New. Listed at 999.00 USD. Professional Grade Automatic Blast Gate (Pneumatic Actuation). Sealed self-cleaning gate with UHMW Seals. Self-cleaning design used for particulate dust and fumes / vapors. Ships Raw Ends for adapting to Spiral Duct - Rolled lip or QF, Quick-fit / Nordfab, KB Duct, Kirk and Blum, Ducts, Inc style ends available for same cost - specify with order if desired.Ships with 24VDC Solenoid - other voltages such as 110 VAC, 220 VAC, and 24VAC are available for same cost - specify with order if desired. Heavy-Duty Galvanized Construction Pneumatically Operated Polyethylene Gasket for 100% Positive Seal Self-Cleaning Blade *Reed Switches and flanges are available upon request for an additional cost. Please inquire. **Additional solenoids can be shipped after the fact (at additional cost) if customer wishes to change voltage without returning gate. ***Returns are allowed (up to 12" diameter) on single gate purchases. No returns allowed on multi item purchases. A restocking fee of 25% applies to all returns or exchanges.