WITHOUT SAFE-TAK VALVE is supplied with either two clappered swivel inlets or with a single full-time swivel inlet. Includes a safety tie-down strap with attached storage cap. STOW-A-WAY 800 portable base is not equipped with SAFE-TAK™ "Flow Safety Valve." Maximum recommended flow with Stow-A-Way Base in portable mode is 800 gpm (3500 l/min). Order XF500-KIT Option $570.00 to add a flow safety valve. Weight of safety valve is 3.1 lb (1.4kg).