Jabsco 37038-2012 solenoid / anti-siphon valve in 12V is for use with Jabsco Quiet Flush fresh water toilets: 38045-3092 and 38045-4192. The inline, normally closed solenoid valve is supplied with 15mm (1/2") JG Speed fit connections, 13mm (1/2") hose tail inlet, 19mm (3/4") hose tail outlet barb and a mounting bracket. It features a double check valve to protect against contamination of potable water, an internal inlet filter and is suitable to be mounted in any orientation, above or below toilet.