The Weepa Termite Protector Weep Hole Screen (PK20) is a new patented termite-resistant weep hole guard manufactured from bifenthrin infused plastic. Proven to deter termite entry through existing weep holes for up to 2 years as part of a termite management plan. Fits standard weep holes between 7mm and 17mm in depth and is suitable for 75mm brick heights with allowance for mortar. Key features and benefits of the Weepa Termite Protector Weep Hole Screen (PK20) Easy installation with patented tool which controls depth of insertion Tested to ensure adequate airflow and cavity ventilation Designed so it can be used with the stainless steel Weepa Protector Weep Hole Screen for ultimate retrofit protection against mice, bees, wasps, cockroaches, spiders, snakes and bushfires. (Note that the Protector Weephole Screen needs to go in first.) Sits securely within the weep hole, without detracting from the external finish and safe from accidental dislodgement Easily replaced when necessary