The Trapp Combo The Trapp Combo is the combination of a clean out and a shut off valve that has a 100 % shut off feature that requires only one key to fit all the valves you buy.  The valve is accessed through the clean out riser pipe.  The clean out is a sweeping fitting that makes easy work of running cameras or cleaning equipment down the service line.  It is projected to retail for around $100.  This is about what the other valves and their plungers cost. More to come in by the end of September. Please check back soon. If you have any questions email me at jtrapp@sc.rr.com.