Check the listing for details. Irritec Perma-Loc Tape x NPT Flush Valve End Cap Adapter. Condition: New. Listed at 8.46 USD. About Drip Depot Perma-Loc Drip Irrigation Fittings:Perma-Loc fittings and adapters are heavy duty reusable connectors for all your connection needs. They are very easy to use and require no special tools. Perma-Loc fittings are available for both Tubing and Tape. The tubing connectors can be used on blank tubing as well as drip line.To Use: Simply twist the locking collar back towards the center of the fitting exposing the barb. Then push tubing or tape over barbed end. Next, hand-tighten locking nut over tubing or tape for a permanent secure fit.To Remove: Just loosen locking nut, pull tube off and re-use as needed.Perma-Loc fittings look similar to traditional flange and locking nut plumbing connections; however, in most cases, they work differently. Unlike a typical locking nut which comes off the fitting and slides over the tubing, a Perma-Loc locking nut is not removed from the fitting. This item is a Perma-Loc Tape x 3/4" NPT Flush Valve End Cap. Close the ends of a 5/8" drip tape run with an automatic flush valve to flush your tape run at the start of each watering cycle. This low pressure valve allows water to flush out at system start-up with as little as 0.66 GPM (39.6 GPH) flow to close the valve. The valve opens at shutdown when system reaches 0.87 PSI. Perma-Loc tape fittings are compatible with: Chapin Tape, Irritec P1 Tape, John Deere T-Tape, and Toro Aqua-Traxx Tape