Keep unwanted bugs and debris from entering and potentially clogging the pipeline with the 3/4 in. FHT Cap. Screws onto the end of 3/4 in. MHT connection point; includes a washer to create a watertight seal. Threaded cap is easy to remove to flush the line or to expand the drip system. Made of durable plastic treated with UV inhibitors to prevent fading and cracking.