The 2" Flomatic DCVE double check valve assembly was in production from 1993-2012. Devices may be tagged "DCV" or DCVE". Fully testable, it is a single cover bronze body device. DCVE models feature a lead free bronze body. Fully testable, it is a single cover bronze body device. DCVE models feature a lead free bronze body. Checks are modular style and held in place with spring loaded wire retainers. This device has been discontinued and only rubber repair parts are available.