Backflow Preventer, Dual Check Valve, .75-In. Wild Bird Dryer box also has the

Dryer box also has the additional features of a built-in draft blocker to help reduce cold air backdraft into the home as well as an oval to round duct adapter which requires no clamps to connect to the duct and eases installation

Spray when air is calm to prevent drift to desirable plants

Polyurethane Finish

Polycrylic

it has a groove grip for comfortable & safe use

Backflow Preventer, Dual Check Valve, .75-In. Wild Bird Dryer box also has the3 4", back flo preventer, dual check valve, use at drinking water supply service entrance or individual outlets, for non health hazard residential water system containment & continuous pressure applications, install vertically or horizontally, temperature range 33 to 180 degrees Fahrenheit, minimum working pressure 10 psi to maximum working pressure 150 psi, buna n seals & stainless steel springs, meets asse 1023 & csa b64. 6, wetted surface of this