This is the primary termination cap you'll need for your Valterra valved system.

It's a standard size modern 3" termination cap with Valterra bayonet hooks and a 3/4" male garden hose caps for off-site drainage of grey water tanks using a flushing hose.  A strap attaches to the waste valve fitting to prevent loss. 

This premium clear version gives you the security of knowing if liquids are backed up behind the cap before you remove it.

You may also want a vented cap (our VTS-425) for times you are storing your trailer and want the tank to dry out.