Ward Check Valves With Y Strainer Learn more about our check valves with Teflon® seals and our Ward Y Strainers. 16FL STRAINER 1 - 2 inch (25 mm - 50 mm) Submit RFQ 16 STRAINER 1/4 - 2 inch (8 mm - 50 mm) Submit RFQ 816 WARD VALVE 1/4 - 2 inch (8 mm - 50 mm) Submit RFQ 816FL WARD VALVE 1/4 - 2 inch (8 mm - 50 mm) Submit RFQ 816HS WARD VALVE 1 inch (25 mm) Submit RFQ