Wilkins: 950 4" NRS Double Check
Designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Assembly shall provide
protection where a potential health hazard does not exist.
ACCESSORIES
ASSE® Listed 1015 (Horizontal and Vertical Flow Up)
CSA® Certified (Horizontal and Vertical Flow-Up)
IAPMO® Listed (Horizontal)
AWWA Compliant C510 (Horizontal)
UL® Classified (Horizontal)
C-UL® Classified (Horizontal)
FM® Approved (Horizontal)
Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California (Horizontal (all sizes) and Vertical
flow up ( 8") installations)
Download Spec Sheet (pdf)