The Rain Bird's Anti-Siphon Valves are designed for above ground installation, will prevent back flow when properly installed 6" above highest sprinkler head. SKU: 43032640 MFG: DASASVF100 Shop more products by Rain Bird. SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping charges calculated at checkout. $28.87 Quantity In Stock Add to cart Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Inlet Size: 1" Material: Plastic Adjustable Flow Control: Yes Voltage: 24 volts Buna-N diaphragm offers superior performance in harsh water environments External bleed to manually flush system of dirt and debris prior to installation and system start-up Spray-free internal bleed for manual operation Energy efficient, low power encapsulated solenoid with captured plunger for long lasting dependability FEATURES MFR: DASASVF100 SKU: 43032640 UPC: 077985607104 Brand: Rain Bird