Watts 909RPDA-DOSY-CFM-FS 10 - Part of the 909RPDA Series Geotextile the ductile iron grates are

the ductile iron grates are painted black to inhibit rust and over time form a protective iron-oxide patina

ZB400K-3IC

UPC - 098268344905

and water dams for flexible installation

ZB400H-2NH

Watts 909RPDA-DOSY-CFM-FS 10 - Part of the 909RPDA Series Geotextile the ductile iron grates areThis 10 inch reduced pressure detector backflow preventer assembly prevents the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. It is ideal for protection in continuous pressure piping applications and at cross connections identified as health hazards. This assembly consists of an epoxy coated cast iron body, domestic OSY resilient seated gate