This BAI4074 drain test kit is an off the shelf solution for the completion of air tests to 4 inch (100mm) water gauge pressure on drains and pipes. Consists of the following:- 4 inch U - Gauge, 9 Feet Length of tubing, Hand Bellows, Y piece 1/2 inch 1 inch Test Nipple Cap. https://elecena.pl/product/27274126/bailey-4074-drain-test-kit 2024-11-14 https://elecena.pl/product/27274126/bailey-4074-drain-test-kit 2025-03-16 https://elecena.pl/product/27274126/bailey-4074-drain-test-kit 2025-03-27 https://elecena.pl/product/27274126/bailey-4074-drain-test-kit 2025-09-04